9992800

素因数分解:

$2^5\times 5^2\times {\mathrm{12491}}^1$

素因数の和:12511

約数の個数: 36

約数和(自身を含む): 24396876

約数和(自身を除く): 14404076

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 12491, 24982, 49964, 62455, 99928, 124910, 199856, 249820, 312275, 399712, 499640, 624550, 999280, 1249100, 1998560, 2498200, 4996400, 9992800]

約数ペア:

[(1, 9992800), (2, 4996400), (4, 2498200), (5, 1998560), (8, 1249100), (10, 999280), (16, 624550), (20, 499640), (25, 399712), (32, 312275), (40, 249820), (50, 199856), (80, 124910), (100, 99928), (160, 62455), (200, 49964), (400, 24982), (800, 12491)]