128575468

素因数分解:

$2^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{40637}}^1$

素因数の和:40761

約数の個数: 24

約数和(自身を含む): 259432992

約数和(自身を除く): 130857524

約数列:

[1, 2, 4, 7, 14, 28, 113, 226, 452, 791, 1582, 3164, 40637, 81274, 162548, 284459, 568918, 1137836, 4591981, 9183962, 18367924, 32143867, 64287734, 128575468]

約数ペア:

[(1, 128575468), (2, 64287734), (4, 32143867), (7, 18367924), (14, 9183962), (28, 4591981), (113, 1137836), (226, 568918), (452, 284459), (791, 162548), (1582, 81274), (3164, 40637)]