81489460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{13627}}^1$

素因数の和:13672

約数の個数: 48

約数和(自身を含む): 192318336

約数和(自身を除く): 110828876

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 230, 260, 299, 460, 598, 1196, 1495, 2990, 5980, 13627, 27254, 54508, 68135, 136270, 177151, 272540, 313421, 354302, 626842, 708604, 885755, 1253684, 1567105, 1771510, 3134210, 3543020, 4074473, 6268420, 8148946, 16297892, 20372365, 40744730, 81489460]

約数ペア:

[(1, 81489460), (2, 40744730), (4, 20372365), (5, 16297892), (10, 8148946), (13, 6268420), (20, 4074473), (23, 3543020), (26, 3134210), (46, 1771510), (52, 1567105), (65, 1253684), (92, 885755), (115, 708604), (130, 626842), (230, 354302), (260, 313421), (299, 272540), (460, 177151), (598, 136270), (1196, 68135), (1495, 54508), (2990, 27254), (5980, 13627)]