1640625300

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31981}}^1$

素因数の和:32023

約数の個数: 144

約数和(自身を含む): 5552075200

約数和(自身を除く): 3911449900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 25, 27, 30, 36, 38, 45, 50, 54, 57, 60, 75, 76, 90, 95, 100, 108, 114, 135, 150, 171, 180, 190, 225, 228, 270, 285, 300, 342, 380, 450, 475, 513, 540, 570, 675, 684, 855, 900, 950, 1026, 1140, 1350, 1425, 1710, 1900, 2052, 2565, 2700, 2850, 3420, 4275, 5130, 5700, 8550, 10260, 12825, 17100, 25650, 31981, 51300, 63962, 95943, 127924, 159905, 191886, 287829, 319810, 383772, 479715, 575658, 607639, 639620, 799525, 863487, 959430, 1151316, 1215278, 1439145, 1599050, 1726974, 1822917, 1918860, 2398575, 2430556, 2878290, 3038195, 3198100, 3453948, 3645834, 4317435, 4797150, 5468751, 5756580, 6076390, 7195725, 7291668, 8634870, 9114585, 9594300, 10937502, 12152780, 14391450, 15190975, 16406253, 17269740, 18229170, 21587175, 21875004, 27343755, 28782900, 30381950, 32812506, 36458340, 43174350, 45572925, 54687510, 60763900, 65625012, 82031265, 86348700, 91145850, 109375020, 136718775, 164062530, 182291700, 273437550, 328125060, 410156325, 546875100, 820312650, 1640625300]

約数ペア:

[(1, 1640625300), (2, 820312650), (3, 546875100), (4, 410156325), (5, 328125060), (6, 273437550), (9, 182291700), (10, 164062530), (12, 136718775), (15, 109375020), (18, 91145850), (19, 86348700), (20, 82031265), (25, 65625012), (27, 60763900), (30, 54687510), (36, 45572925), (38, 43174350), (45, 36458340), (50, 32812506), (54, 30381950), (57, 28782900), (60, 27343755), (75, 21875004), (76, 21587175), (90, 18229170), (95, 17269740), (100, 16406253), (108, 15190975), (114, 14391450), (135, 12152780), (150, 10937502), (171, 9594300), (180, 9114585), (190, 8634870), (225, 7291668), (228, 7195725), (270, 6076390), (285, 5756580), (300, 5468751), (342, 4797150), (380, 4317435), (450, 3645834), (475, 3453948), (513, 3198100), (540, 3038195), (570, 2878290), (675, 2430556), (684, 2398575), (855, 1918860), (900, 1822917), (950, 1726974), (1026, 1599050), (1140, 1439145), (1350, 1215278), (1425, 1151316), (1710, 959430), (1900, 863487), (2052, 799525), (2565, 639620), (2700, 607639), (2850, 575658), (3420, 479715), (4275, 383772), (5130, 319810), (5700, 287829), (8550, 191886), (10260, 159905), (12825, 127924), (17100, 95943), (25650, 63962), (31981, 51300)]