251017660

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{4111}}^1$

素因数の和:4234

約数の個数: 48

約数和(自身を含む): 547126272

約数和(自身を除く): 296108612

約数列:

[1, 2, 4, 5, 10, 20, 43, 71, 86, 142, 172, 215, 284, 355, 430, 710, 860, 1420, 3053, 4111, 6106, 8222, 12212, 15265, 16444, 20555, 30530, 41110, 61060, 82220, 176773, 291881, 353546, 583762, 707092, 883865, 1167524, 1459405, 1767730, 2918810, 3535460, 5837620, 12550883, 25101766, 50203532, 62754415, 125508830, 251017660]

約数ペア:

[(1, 251017660), (2, 125508830), (4, 62754415), (5, 50203532), (10, 25101766), (20, 12550883), (43, 5837620), (71, 3535460), (86, 2918810), (142, 1767730), (172, 1459405), (215, 1167524), (284, 883865), (355, 707092), (430, 583762), (710, 353546), (860, 291881), (1420, 176773), (3053, 82220), (4111, 61060), (6106, 41110), (8222, 30530), (12212, 20555), (15265, 16444)]