25129220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{40531}}^1$

素因数の和:40571

約数の個数: 24

約数和(自身を含む): 54475008

約数和(自身を除く): 29345788

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 40531, 81062, 162124, 202655, 405310, 810620, 1256461, 2512922, 5025844, 6282305, 12564610, 25129220]

約数ペア:

[(1, 25129220), (2, 12564610), (4, 6282305), (5, 5025844), (10, 2512922), (20, 1256461), (31, 810620), (62, 405310), (124, 202655), (155, 162124), (310, 81062), (620, 40531)]