640086716

素因数分解:

$2^2\times {\mathrm{149}}^1\times {\mathrm{421}}^1\times {\mathrm{2551}}^1$

素因数の和:3125

約数の個数: 24

約数和(自身を含む): 1130791200

約数和(自身を除く): 490704484

約数列:

[1, 2, 4, 149, 298, 421, 596, 842, 1684, 2551, 5102, 10204, 62729, 125458, 250916, 380099, 760198, 1073971, 1520396, 2147942, 4295884, 160021679, 320043358, 640086716]

約数ペア:

[(1, 640086716), (2, 320043358), (4, 160021679), (149, 4295884), (298, 2147942), (421, 1520396), (596, 1073971), (842, 760198), (1684, 380099), (2551, 250916), (5102, 125458), (10204, 62729)]