55949020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{971}}^1$

素因数の和:1090

約数の個数: 48

約数和(自身を含む): 122145408

約数和(自身を除く): 66196388

約数列:

[1, 2, 4, 5, 10, 20, 43, 67, 86, 134, 172, 215, 268, 335, 430, 670, 860, 971, 1340, 1942, 2881, 3884, 4855, 5762, 9710, 11524, 14405, 19420, 28810, 41753, 57620, 65057, 83506, 130114, 167012, 208765, 260228, 325285, 417530, 650570, 835060, 1301140, 2797451, 5594902, 11189804, 13987255, 27974510, 55949020]

約数ペア:

[(1, 55949020), (2, 27974510), (4, 13987255), (5, 11189804), (10, 5594902), (20, 2797451), (43, 1301140), (67, 835060), (86, 650570), (134, 417530), (172, 325285), (215, 260228), (268, 208765), (335, 167012), (430, 130114), (670, 83506), (860, 65057), (971, 57620), (1340, 41753), (1942, 28810), (2881, 19420), (3884, 14405), (4855, 11524), (5762, 9710)]