641566340

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{439429}}^1$

素因数の和:439511

約数の個数: 24

約数和(自身を含む): 1365748440

約数和(自身を除く): 724182100

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 439429, 878858, 1757716, 2197145, 4394290, 8788580, 32078317, 64156634, 128313268, 160391585, 320783170, 641566340]

約数ペア:

[(1, 641566340), (2, 320783170), (4, 160391585), (5, 128313268), (10, 64156634), (20, 32078317), (73, 8788580), (146, 4394290), (292, 2197145), (365, 1757716), (730, 878858), (1460, 439429)]