656346940

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{290419}}^1$

素因数の和:290541

約数の個数: 24

約数和(自身を含む): 1390530960

約数和(自身を除く): 734184020

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 290419, 580838, 1161676, 1452095, 2904190, 5808380, 32817347, 65634694, 131269388, 164086735, 328173470, 656346940]

約数ペア:

[(1, 656346940), (2, 328173470), (4, 164086735), (5, 131269388), (10, 65634694), (20, 32817347), (113, 5808380), (226, 2904190), (452, 1452095), (565, 1161676), (1130, 580838), (2260, 290419)]