640668000

素因数分解:

$2^5\times 3^1\times 5^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{263}}^1$

素因数の和:327

約数の個数: 384

約数和(自身を含む): 2490808320

約数和(自身を除く): 1850140320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 29, 30, 32, 35, 40, 42, 48, 50, 56, 58, 60, 70, 75, 80, 84, 87, 96, 100, 105, 112, 116, 120, 125, 140, 145, 150, 160, 168, 174, 175, 200, 203, 210, 224, 232, 240, 250, 263, 280, 290, 300, 336, 348, 350, 375, 400, 406, 420, 435, 464, 480, 500, 525, 526, 560, 580, 600, 609, 672, 696, 700, 725, 750, 789, 800, 812, 840, 870, 875, 928, 1000, 1015, 1050, 1052, 1120, 1160, 1200, 1218, 1315, 1392, 1400, 1450, 1500, 1578, 1624, 1680, 1740, 1750, 1841, 2000, 2030, 2100, 2104, 2175, 2320, 2400, 2436, 2625, 2630, 2784, 2800, 2900, 3000, 3045, 3156, 3248, 3360, 3480, 3500, 3625, 3682, 3945, 4000, 4060, 4200, 4208, 4350, 4640, 4872, 5075, 5250, 5260, 5523, 5600, 5800, 6000, 6090, 6312, 6496, 6575, 6960, 7000, 7250, 7364, 7627, 7890, 8120, 8400, 8416, 8700, 9205, 9744, 10150, 10500, 10520, 10875, 11046, 11600, 12000, 12180, 12624, 13150, 13920, 14000, 14500, 14728, 15225, 15254, 15780, 16240, 16800, 17400, 18410, 19488, 19725, 20300, 21000, 21040, 21750, 22092, 22881, 23200, 24360, 25248, 25375, 26300, 27615, 28000, 29000, 29456, 30450, 30508, 31560, 32480, 32875, 34800, 36820, 38135, 39450, 40600, 42000, 42080, 43500, 44184, 45762, 46025, 48720, 50750, 52600, 53389, 55230, 58000, 58912, 60900, 61016, 63120, 65750, 69600, 73640, 76125, 76270, 78900, 81200, 84000, 87000, 88368, 91524, 92050, 97440, 98625, 101500, 105200, 106778, 110460, 114405, 116000, 121800, 122032, 126240, 131500, 138075, 147280, 152250, 152540, 157800, 160167, 162400, 174000, 176736, 183048, 184100, 190675, 197250, 203000, 210400, 213556, 220920, 228810, 230125, 243600, 244064, 263000, 266945, 276150, 294560, 304500, 305080, 315600, 320334, 348000, 366096, 368200, 381350, 394500, 406000, 427112, 441840, 457620, 460250, 487200, 526000, 533890, 552300, 572025, 609000, 610160, 631200, 640668, 690375, 732192, 736400, 762700, 789000, 800835, 812000, 854224, 883680, 915240, 920500, 953375, 1052000, 1067780, 1104600, 1144050, 1218000, 1220320, 1281336, 1334725, 1380750, 1472800, 1525400, 1578000, 1601670, 1708448, 1830480, 1841000, 1906750, 2135560, 2209200, 2288100, 2436000, 2562672, 2669450, 2761500, 2860125, 3050800, 3156000, 3203340, 3660960, 3682000, 3813500, 4004175, 4271120, 4418400, 4576200, 5125344, 5338900, 5523000, 5720250, 6101600, 6406680, 6673625, 7364000, 7627000, 8008350, 8542240, 9152400, 10677800, 11046000, 11440500, 12813360, 13347250, 15254000, 16016700, 18304800, 20020875, 21355600, 22092000, 22881000, 25626720, 26694500, 30508000, 32033400, 40041750, 42711200, 45762000, 53389000, 64066800, 80083500, 91524000, 106778000, 128133600, 160167000, 213556000, 320334000, 640668000]

約数ペア:

[(1, 640668000), (2, 320334000), (3, 213556000), (4, 160167000), (5, 128133600), (6, 106778000), (7, 91524000), (8, 80083500), (10, 64066800), (12, 53389000), (14, 45762000), (15, 42711200), (16, 40041750), (20, 32033400), (21, 30508000), (24, 26694500), (25, 25626720), (28, 22881000), (29, 22092000), (30, 21355600), (32, 20020875), (35, 18304800), (40, 16016700), (42, 15254000), (48, 13347250), (50, 12813360), (56, 11440500), (58, 11046000), (60, 10677800), (70, 9152400), (75, 8542240), (80, 8008350), (84, 7627000), (87, 7364000), (96, 6673625), (100, 6406680), (105, 6101600), (112, 5720250), (116, 5523000), (120, 5338900), (125, 5125344), (140, 4576200), (145, 4418400), (150, 4271120), (160, 4004175), (168, 3813500), (174, 3682000), (175, 3660960), (200, 3203340), (203, 3156000), (210, 3050800), (224, 2860125), (232, 2761500), (240, 2669450), (250, 2562672), (263, 2436000), (280, 2288100), (290, 2209200), (300, 2135560), (336, 1906750), (348, 1841000), (350, 1830480), (375, 1708448), (400, 1601670), (406, 1578000), (420, 1525400), (435, 1472800), (464, 1380750), (480, 1334725), (500, 1281336), (525, 1220320), (526, 1218000), (560, 1144050), (580, 1104600), (600, 1067780), (609, 1052000), (672, 953375), (696, 920500), (700, 915240), (725, 883680), (750, 854224), (789, 812000), (800, 800835), (812, 789000), (840, 762700), (870, 736400), (875, 732192), (928, 690375), (1000, 640668), (1015, 631200), (1050, 610160), (1052, 609000), (1120, 572025), (1160, 552300), (1200, 533890), (1218, 526000), (1315, 487200), (1392, 460250), (1400, 457620), (1450, 441840), (1500, 427112), (1578, 406000), (1624, 394500), (1680, 381350), (1740, 368200), (1750, 366096), (1841, 348000), (2000, 320334), (2030, 315600), (2100, 305080), (2104, 304500), (2175, 294560), (2320, 276150), (2400, 266945), (2436, 263000), (2625, 244064), (2630, 243600), (2784, 230125), (2800, 228810), (2900, 220920), (3000, 213556), (3045, 210400), (3156, 203000), (3248, 197250), (3360, 190675), (3480, 184100), (3500, 183048), (3625, 176736), (3682, 174000), (3945, 162400), (4000, 160167), (4060, 157800), (4200, 152540), (4208, 152250), (4350, 147280), (4640, 138075), (4872, 131500), (5075, 126240), (5250, 122032), (5260, 121800), (5523, 116000), (5600, 114405), (5800, 110460), (6000, 106778), (6090, 105200), (6312, 101500), (6496, 98625), (6575, 97440), (6960, 92050), (7000, 91524), (7250, 88368), (7364, 87000), (7627, 84000), (7890, 81200), (8120, 78900), (8400, 76270), (8416, 76125), (8700, 73640), (9205, 69600), (9744, 65750), (10150, 63120), (10500, 61016), (10520, 60900), (10875, 58912), (11046, 58000), (11600, 55230), (12000, 53389), (12180, 52600), (12624, 50750), (13150, 48720), (13920, 46025), (14000, 45762), (14500, 44184), (14728, 43500), (15225, 42080), (15254, 42000), (15780, 40600), (16240, 39450), (16800, 38135), (17400, 36820), (18410, 34800), (19488, 32875), (19725, 32480), (20300, 31560), (21000, 30508), (21040, 30450), (21750, 29456), (22092, 29000), (22881, 28000), (23200, 27615), (24360, 26300), (25248, 25375)]