28211600

素因数分解:

$2^4\times 5^2\times {\mathrm{70529}}^1$

素因数の和:70547

約数の個数: 30

約数和(自身を含む): 67779330

約数和(自身を除く): 39567730

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 70529, 141058, 282116, 352645, 564232, 705290, 1128464, 1410580, 1763225, 2821160, 3526450, 5642320, 7052900, 14105800, 28211600]

約数ペア:

[(1, 28211600), (2, 14105800), (4, 7052900), (5, 5642320), (8, 3526450), (10, 2821160), (16, 1763225), (20, 1410580), (25, 1128464), (40, 705290), (50, 564232), (80, 352645), (100, 282116), (200, 141058), (400, 70529)]