18416080

素因数分解:

$2^4\times 5^1\times {\mathrm{211}}^1\times {\mathrm{1091}}^1$

素因数の和:1315

約数の個数: 40

約数和(自身を含む): 43059744

約数和(自身を除く): 24643664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 211, 422, 844, 1055, 1091, 1688, 2110, 2182, 3376, 4220, 4364, 5455, 8440, 8728, 10910, 16880, 17456, 21820, 43640, 87280, 230201, 460402, 920804, 1151005, 1841608, 2302010, 3683216, 4604020, 9208040, 18416080]

約数ペア:

[(1, 18416080), (2, 9208040), (4, 4604020), (5, 3683216), (8, 2302010), (10, 1841608), (16, 1151005), (20, 920804), (40, 460402), (80, 230201), (211, 87280), (422, 43640), (844, 21820), (1055, 17456), (1091, 16880), (1688, 10910), (2110, 8728), (2182, 8440), (3376, 5455), (4220, 4364)]