73712720

素因数分解:

$2^4\times 5^1\times {\mathrm{921409}}^1$

素因数の和:921422

約数の個数: 20

約数和(自身を含む): 171382260

約数和(自身を除く): 97669540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 921409, 1842818, 3685636, 4607045, 7371272, 9214090, 14742544, 18428180, 36856360, 73712720]

約数ペア:

[(1, 73712720), (2, 36856360), (4, 18428180), (5, 14742544), (8, 9214090), (10, 7371272), (16, 4607045), (20, 3685636), (40, 1842818), (80, 921409)]