204026980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{929}}^1$

素因数の和:1156

約数の個数: 48

約数和(自身を含む): 437472000

約数和(自身を除く): 233445020

約数列:

[1, 2, 4, 5, 10, 20, 79, 139, 158, 278, 316, 395, 556, 695, 790, 929, 1390, 1580, 1858, 2780, 3716, 4645, 9290, 10981, 18580, 21962, 43924, 54905, 73391, 109810, 129131, 146782, 219620, 258262, 293564, 366955, 516524, 645655, 733910, 1291310, 1467820, 2582620, 10201349, 20402698, 40805396, 51006745, 102013490, 204026980]

約数ペア:

[(1, 204026980), (2, 102013490), (4, 51006745), (5, 40805396), (10, 20402698), (20, 10201349), (79, 2582620), (139, 1467820), (158, 1291310), (278, 733910), (316, 645655), (395, 516524), (556, 366955), (695, 293564), (790, 258262), (929, 219620), (1390, 146782), (1580, 129131), (1858, 109810), (2780, 73391), (3716, 54905), (4645, 43924), (9290, 21962), (10981, 18580)]