78217620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{100279}}^1$

素因数の和:100304

約数の個数: 48

約数和(自身を含む): 235858560

約数和(自身を除く): 157640940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 100279, 200558, 300837, 401116, 501395, 601674, 1002790, 1203348, 1303627, 1504185, 2005580, 2607254, 3008370, 3910881, 5214508, 6016740, 6518135, 7821762, 13036270, 15643524, 19554405, 26072540, 39108810, 78217620]

約数ペア:

[(1, 78217620), (2, 39108810), (3, 26072540), (4, 19554405), (5, 15643524), (6, 13036270), (10, 7821762), (12, 6518135), (13, 6016740), (15, 5214508), (20, 3910881), (26, 3008370), (30, 2607254), (39, 2005580), (52, 1504185), (60, 1303627), (65, 1203348), (78, 1002790), (130, 601674), (156, 501395), (195, 401116), (260, 300837), (390, 200558), (780, 100279)]