879835240

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{217781}}^1$

素因数の和:217893

約数の個数: 32

約数和(自身を含む): 1999238760

約数和(自身を除く): 1119403520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 217781, 435562, 871124, 1088905, 1742248, 2177810, 4355620, 8711240, 21995881, 43991762, 87983524, 109979405, 175967048, 219958810, 439917620, 879835240]

約数ペア:

[(1, 879835240), (2, 439917620), (4, 219958810), (5, 175967048), (8, 109979405), (10, 87983524), (20, 43991762), (40, 21995881), (101, 8711240), (202, 4355620), (404, 2177810), (505, 1742248), (808, 1088905), (1010, 871124), (2020, 435562), (4040, 217781)]