39988100

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{13789}}^1$

素因数の和:13832

約数の個数: 36

約数和(自身を含む): 89772900

約数和(自身を除く): 49784800

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 145, 290, 580, 725, 1450, 2900, 13789, 27578, 55156, 68945, 137890, 275780, 344725, 399881, 689450, 799762, 1378900, 1599524, 1999405, 3998810, 7997620, 9997025, 19994050, 39988100]

約数ペア:

[(1, 39988100), (2, 19994050), (4, 9997025), (5, 7997620), (10, 3998810), (20, 1999405), (25, 1599524), (29, 1378900), (50, 799762), (58, 689450), (100, 399881), (116, 344725), (145, 275780), (290, 137890), (580, 68945), (725, 55156), (1450, 27578), (2900, 13789)]