20145694840

素因数分解:

$2^3\times 5^1\times {\mathrm{7933}}^1\times {\mathrm{63487}}^1$

素因数の和:71431

約数の個数: 32

約数和(自身を含む): 45334241280

約数和(自身を除く): 25188546440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 7933, 15866, 31732, 39665, 63464, 63487, 79330, 126974, 158660, 253948, 317320, 317435, 507896, 634870, 1269740, 2539480, 503642371, 1007284742, 2014569484, 2518211855, 4029138968, 5036423710, 10072847420, 20145694840]

約数ペア:

[(1, 20145694840), (2, 10072847420), (4, 5036423710), (5, 4029138968), (8, 2518211855), (10, 2014569484), (20, 1007284742), (40, 503642371), (7933, 2539480), (15866, 1269740), (31732, 634870), (39665, 507896), (63464, 317435), (63487, 317320), (79330, 253948), (126974, 158660)]