397951540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{406073}}^1$

素因数の和:406096

約数の個数: 36

約数和(自身を含む): 972141156

約数和(自身を除く): 574189616

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 406073, 812146, 1624292, 2030365, 2842511, 4060730, 5685022, 8121460, 11370044, 14212555, 19897577, 28425110, 39795154, 56850220, 79590308, 99487885, 198975770, 397951540]

約数ペア:

[(1, 397951540), (2, 198975770), (4, 99487885), (5, 79590308), (7, 56850220), (10, 39795154), (14, 28425110), (20, 19897577), (28, 14212555), (35, 11370044), (49, 8121460), (70, 5685022), (98, 4060730), (140, 2842511), (196, 2030365), (245, 1624292), (490, 812146), (980, 406073)]