128575525

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{3917}}^1$

素因数の和:4041

約数の個数: 24

約数和(自身を含む): 173442024

約数和(自身を除く): 44866499

約数列:

[1, 5, 13, 25, 65, 101, 325, 505, 1313, 2525, 3917, 6565, 19585, 32825, 50921, 97925, 254605, 395617, 1273025, 1978085, 5143021, 9890425, 25715105, 128575525]

約数ペア:

[(1, 128575525), (5, 25715105), (13, 9890425), (25, 5143021), (65, 1978085), (101, 1273025), (325, 395617), (505, 254605), (1313, 97925), (2525, 50921), (3917, 32825), (6565, 19585)]