21225840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{1499}}^1$

素因数の和:1574

約数の個数: 80

約数和(自身を含む): 66960000

約数和(自身を除く): 45734160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 59, 60, 80, 118, 120, 177, 236, 240, 295, 354, 472, 590, 708, 885, 944, 1180, 1416, 1499, 1770, 2360, 2832, 2998, 3540, 4497, 4720, 5996, 7080, 7495, 8994, 11992, 14160, 14990, 17988, 22485, 23984, 29980, 35976, 44970, 59960, 71952, 88441, 89940, 119920, 176882, 179880, 265323, 353764, 359760, 442205, 530646, 707528, 884410, 1061292, 1326615, 1415056, 1768820, 2122584, 2653230, 3537640, 4245168, 5306460, 7075280, 10612920, 21225840]

約数ペア:

[(1, 21225840), (2, 10612920), (3, 7075280), (4, 5306460), (5, 4245168), (6, 3537640), (8, 2653230), (10, 2122584), (12, 1768820), (15, 1415056), (16, 1326615), (20, 1061292), (24, 884410), (30, 707528), (40, 530646), (48, 442205), (59, 359760), (60, 353764), (80, 265323), (118, 179880), (120, 176882), (177, 119920), (236, 89940), (240, 88441), (295, 71952), (354, 59960), (472, 44970), (590, 35976), (708, 29980), (885, 23984), (944, 22485), (1180, 17988), (1416, 14990), (1499, 14160), (1770, 11992), (2360, 8994), (2832, 7495), (2998, 7080), (3540, 5996), (4497, 4720)]