380479060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{20611}}^1$

素因数の和:20704

約数の個数: 48

約数和(自身を含む): 872629632

約数和(自身を除く): 492150572

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 710, 923, 1420, 1846, 3692, 4615, 9230, 18460, 20611, 41222, 82444, 103055, 206110, 267943, 412220, 535886, 1071772, 1339715, 1463381, 2679430, 2926762, 5358860, 5853524, 7316905, 14633810, 19023953, 29267620, 38047906, 76095812, 95119765, 190239530, 380479060]

約数ペア:

[(1, 380479060), (2, 190239530), (4, 95119765), (5, 76095812), (10, 38047906), (13, 29267620), (20, 19023953), (26, 14633810), (52, 7316905), (65, 5853524), (71, 5358860), (130, 2926762), (142, 2679430), (260, 1463381), (284, 1339715), (355, 1071772), (710, 535886), (923, 412220), (1420, 267943), (1846, 206110), (3692, 103055), (4615, 82444), (9230, 41222), (18460, 20611)]