78551600

素因数分解:

$2^4\times 5^2\times {\mathrm{196379}}^1$

素因数の和:196397

約数の個数: 30

約数和(自身を含む): 188721180

約数和(自身を除く): 110169580

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 196379, 392758, 785516, 981895, 1571032, 1963790, 3142064, 3927580, 4909475, 7855160, 9818950, 15710320, 19637900, 39275800, 78551600]

約数ペア:

[(1, 78551600), (2, 39275800), (4, 19637900), (5, 15710320), (8, 9818950), (10, 7855160), (16, 4909475), (20, 3927580), (25, 3142064), (40, 1963790), (50, 1571032), (80, 981895), (100, 785516), (200, 392758), (400, 196379)]