25551220

素因数分解:

$2^2\times 5^1\times {\mathrm{1091}}^1\times {\mathrm{1171}}^1$

素因数の和:2271

約数の個数: 24

約数和(自身を含む): 53752608

約数和(自身を除く): 28201388

約数列:

[1, 2, 4, 5, 10, 20, 1091, 1171, 2182, 2342, 4364, 4684, 5455, 5855, 10910, 11710, 21820, 23420, 1277561, 2555122, 5110244, 6387805, 12775610, 25551220]

約数ペア:

[(1, 25551220), (2, 12775610), (4, 6387805), (5, 5110244), (10, 2555122), (20, 1277561), (1091, 23420), (1171, 21820), (2182, 11710), (2342, 10910), (4364, 5855), (4684, 5455)]