78070180

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{54979}}^1$

素因数の和:55059

約数の個数: 24

約数和(自身を含む): 166259520

約数和(自身を除く): 88189340

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 54979, 109958, 219916, 274895, 549790, 1099580, 3903509, 7807018, 15614036, 19517545, 39035090, 78070180]

約数ペア:

[(1, 78070180), (2, 39035090), (4, 19517545), (5, 15614036), (10, 7807018), (20, 3903509), (71, 1099580), (142, 549790), (284, 274895), (355, 219916), (710, 109958), (1420, 54979)]