640612800

素因数分解:

$2^6\times 3^4\times 5^2\times {\mathrm{4943}}^1$

素因数の和:4977

約数の個数: 210

約数和(自身を含む): 2355207888

約数和(自身を除く): 1714595088

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 32, 36, 40, 45, 48, 50, 54, 60, 64, 72, 75, 80, 81, 90, 96, 100, 108, 120, 135, 144, 150, 160, 162, 180, 192, 200, 216, 225, 240, 270, 288, 300, 320, 324, 360, 400, 405, 432, 450, 480, 540, 576, 600, 648, 675, 720, 800, 810, 864, 900, 960, 1080, 1200, 1296, 1350, 1440, 1600, 1620, 1728, 1800, 2025, 2160, 2400, 2592, 2700, 2880, 3240, 3600, 4050, 4320, 4800, 4943, 5184, 5400, 6480, 7200, 8100, 8640, 9886, 10800, 12960, 14400, 14829, 16200, 19772, 21600, 24715, 25920, 29658, 32400, 39544, 43200, 44487, 49430, 59316, 64800, 74145, 79088, 88974, 98860, 118632, 123575, 129600, 133461, 148290, 158176, 177948, 197720, 222435, 237264, 247150, 266922, 296580, 316352, 355896, 370725, 395440, 400383, 444870, 474528, 494300, 533844, 593160, 667305, 711792, 741450, 790880, 800766, 889740, 949056, 988600, 1067688, 1112175, 1186320, 1334610, 1423584, 1482900, 1581760, 1601532, 1779480, 1977200, 2001915, 2135376, 2224350, 2372640, 2669220, 2847168, 2965800, 3203064, 3336525, 3558960, 3954400, 4003830, 4270752, 4448700, 4745280, 5338440, 5931600, 6406128, 6673050, 7117920, 7908800, 8007660, 8541504, 8897400, 10009575, 10676880, 11863200, 12812256, 13346100, 14235840, 16015320, 17794800, 20019150, 21353760, 23726400, 25624512, 26692200, 32030640, 35589600, 40038300, 42707520, 53384400, 64061280, 71179200, 80076600, 106768800, 128122560, 160153200, 213537600, 320306400, 640612800]

約数ペア:

[(1, 640612800), (2, 320306400), (3, 213537600), (4, 160153200), (5, 128122560), (6, 106768800), (8, 80076600), (9, 71179200), (10, 64061280), (12, 53384400), (15, 42707520), (16, 40038300), (18, 35589600), (20, 32030640), (24, 26692200), (25, 25624512), (27, 23726400), (30, 21353760), (32, 20019150), (36, 17794800), (40, 16015320), (45, 14235840), (48, 13346100), (50, 12812256), (54, 11863200), (60, 10676880), (64, 10009575), (72, 8897400), (75, 8541504), (80, 8007660), (81, 7908800), (90, 7117920), (96, 6673050), (100, 6406128), (108, 5931600), (120, 5338440), (135, 4745280), (144, 4448700), (150, 4270752), (160, 4003830), (162, 3954400), (180, 3558960), (192, 3336525), (200, 3203064), (216, 2965800), (225, 2847168), (240, 2669220), (270, 2372640), (288, 2224350), (300, 2135376), (320, 2001915), (324, 1977200), (360, 1779480), (400, 1601532), (405, 1581760), (432, 1482900), (450, 1423584), (480, 1334610), (540, 1186320), (576, 1112175), (600, 1067688), (648, 988600), (675, 949056), (720, 889740), (800, 800766), (810, 790880), (864, 741450), (900, 711792), (960, 667305), (1080, 593160), (1200, 533844), (1296, 494300), (1350, 474528), (1440, 444870), (1600, 400383), (1620, 395440), (1728, 370725), (1800, 355896), (2025, 316352), (2160, 296580), (2400, 266922), (2592, 247150), (2700, 237264), (2880, 222435), (3240, 197720), (3600, 177948), (4050, 158176), (4320, 148290), (4800, 133461), (4943, 129600), (5184, 123575), (5400, 118632), (6480, 98860), (7200, 88974), (8100, 79088), (8640, 74145), (9886, 64800), (10800, 59316), (12960, 49430), (14400, 44487), (14829, 43200), (16200, 39544), (19772, 32400), (21600, 29658), (24715, 25920)]