215501960

素因数分解:

$2^3\times 5^1\times {\mathrm{1399}}^1\times {\mathrm{3851}}^1$

素因数の和:5261

約数の個数: 32

約数和(自身を含む): 485352000

約数和(自身を除く): 269850040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1399, 2798, 3851, 5596, 6995, 7702, 11192, 13990, 15404, 19255, 27980, 30808, 38510, 55960, 77020, 154040, 5387549, 10775098, 21550196, 26937745, 43100392, 53875490, 107750980, 215501960]

約数ペア:

[(1, 215501960), (2, 107750980), (4, 53875490), (5, 43100392), (8, 26937745), (10, 21550196), (20, 10775098), (40, 5387549), (1399, 154040), (2798, 77020), (3851, 55960), (5596, 38510), (6995, 30808), (7702, 27980), (11192, 19255), (13990, 15404)]