25198820

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{6961}}^1$

素因数の和:7151

約数の個数: 24

約数和(自身を含む): 53217528

約数和(自身を除く): 28018708

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3620, 6961, 13922, 27844, 34805, 69610, 139220, 1259941, 2519882, 5039764, 6299705, 12599410, 25198820]

約数ペア:

[(1, 25198820), (2, 12599410), (4, 6299705), (5, 5039764), (10, 2519882), (20, 1259941), (181, 139220), (362, 69610), (724, 34805), (905, 27844), (1810, 13922), (3620, 6961)]