20838100

素因数分解:

$2^2\times 5^2\times {\mathrm{191}}^1\times {\mathrm{1091}}^1$

素因数の和:1296

約数の個数: 36

約数和(自身を含む): 45497088

約数和(自身を除く): 24658988

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 191, 382, 764, 955, 1091, 1910, 2182, 3820, 4364, 4775, 5455, 9550, 10910, 19100, 21820, 27275, 54550, 109100, 208381, 416762, 833524, 1041905, 2083810, 4167620, 5209525, 10419050, 20838100]

約数ペア:

[(1, 20838100), (2, 10419050), (4, 5209525), (5, 4167620), (10, 2083810), (20, 1041905), (25, 833524), (50, 416762), (100, 208381), (191, 109100), (382, 54550), (764, 27275), (955, 21820), (1091, 19100), (1910, 10910), (2182, 9550), (3820, 5455), (4364, 4775)]