55838120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{643}}^1$

素因数の和:834

約数の個数: 64

約数和(自身を含む): 136321920

約数和(自身を除く): 80483800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 167, 260, 334, 520, 643, 668, 835, 1286, 1336, 1670, 2171, 2572, 3215, 3340, 4342, 5144, 6430, 6680, 8359, 8684, 10855, 12860, 16718, 17368, 21710, 25720, 33436, 41795, 43420, 66872, 83590, 86840, 107381, 167180, 214762, 334360, 429524, 536905, 859048, 1073810, 1395953, 2147620, 2791906, 4295240, 5583812, 6979765, 11167624, 13959530, 27919060, 55838120]

約数ペア:

[(1, 55838120), (2, 27919060), (4, 13959530), (5, 11167624), (8, 6979765), (10, 5583812), (13, 4295240), (20, 2791906), (26, 2147620), (40, 1395953), (52, 1073810), (65, 859048), (104, 536905), (130, 429524), (167, 334360), (260, 214762), (334, 167180), (520, 107381), (643, 86840), (668, 83590), (835, 66872), (1286, 43420), (1336, 41795), (1670, 33436), (2171, 25720), (2572, 21710), (3215, 17368), (3340, 16718), (4342, 12860), (5144, 10855), (6430, 8684), (6680, 8359)]