7428220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{11981}}^1$

素因数の和:12021

約数の個数: 24

約数和(自身を含む): 16103808

約数和(自身を除く): 8675588

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 11981, 23962, 47924, 59905, 119810, 239620, 371411, 742822, 1485644, 1857055, 3714110, 7428220]

約数ペア:

[(1, 7428220), (2, 3714110), (4, 1857055), (5, 1485644), (10, 742822), (20, 371411), (31, 239620), (62, 119810), (124, 59905), (155, 47924), (310, 23962), (620, 11981)]