908643140

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{70877}}^1$

素因数の和:71527

約数の個数: 24

約数和(自身を含む): 1911154392

約数和(自身を除く): 1002511252

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2564, 3205, 6410, 12820, 70877, 141754, 283508, 354385, 708770, 1417540, 45432157, 90864314, 181728628, 227160785, 454321570, 908643140]

約数ペア:

[(1, 908643140), (2, 454321570), (4, 227160785), (5, 181728628), (10, 90864314), (20, 45432157), (641, 1417540), (1282, 708770), (2564, 354385), (3205, 283508), (6410, 141754), (12820, 70877)]