65245640

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{10007}}^1$

素因数の和:10181

約数の個数: 32

約数和(自身を含む): 147718080

約数和(自身を除く): 82472440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 10007, 20014, 40028, 50035, 80056, 100070, 200140, 400280, 1631141, 3262282, 6524564, 8155705, 13049128, 16311410, 32622820, 65245640]

約数ペア:

[(1, 65245640), (2, 32622820), (4, 16311410), (5, 13049128), (8, 8155705), (10, 6524564), (20, 3262282), (40, 1631141), (163, 400280), (326, 200140), (652, 100070), (815, 80056), (1304, 50035), (1630, 40028), (3260, 20014), (6520, 10007)]