78867380

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{25117}}^1$

素因数の和:25283

約数の個数: 24

約数和(自身を含む): 166683048

約数和(自身を除く): 87815668

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 25117, 50234, 100468, 125585, 251170, 502340, 3943369, 7886738, 15773476, 19716845, 39433690, 78867380]

約数ペア:

[(1, 78867380), (2, 39433690), (4, 19716845), (5, 15773476), (10, 7886738), (20, 3943369), (157, 502340), (314, 251170), (628, 125585), (785, 100468), (1570, 50234), (3140, 25117)]