81872050

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{9689}}^1$

素因数の和:9727

約数の個数: 36

約数和(自身を含む): 164914110

約数和(自身を除く): 83042060

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 169, 325, 338, 650, 845, 1690, 4225, 8450, 9689, 19378, 48445, 96890, 125957, 242225, 251914, 484450, 629785, 1259570, 1637441, 3148925, 3274882, 6297850, 8187205, 16374410, 40936025, 81872050]

約数ペア:

[(1, 81872050), (2, 40936025), (5, 16374410), (10, 8187205), (13, 6297850), (25, 3274882), (26, 3148925), (50, 1637441), (65, 1259570), (130, 629785), (169, 484450), (325, 251914), (338, 242225), (650, 125957), (845, 96890), (1690, 48445), (4225, 19378), (8450, 9689)]