71879980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{123931}}^1$

素因数の和:123969

約数の個数: 24

約数和(自身を含む): 156154320

約数和(自身を除く): 84274340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 123931, 247862, 495724, 619655, 1239310, 2478620, 3593999, 7187998, 14375996, 17969995, 35939990, 71879980]

約数ペア:

[(1, 71879980), (2, 35939990), (4, 17969995), (5, 14375996), (10, 7187998), (20, 3593999), (29, 2478620), (58, 1239310), (116, 619655), (145, 495724), (290, 247862), (580, 123931)]