257620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1171}}^1$

素因数の和:1191

約数の個数: 24

約数和(自身を含む): 590688

約数和(自身を除く): 333068

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1171, 2342, 4684, 5855, 11710, 12881, 23420, 25762, 51524, 64405, 128810, 257620]

約数ペア:

[(1, 257620), (2, 128810), (4, 64405), (5, 51524), (10, 25762), (11, 23420), (20, 12881), (22, 11710), (44, 5855), (55, 4684), (110, 2342), (220, 1171)]