19185640

素因数分解:

$2^3\times 5^1\times {\mathrm{293}}^1\times {\mathrm{1637}}^1$

素因数の和:1941

約数の個数: 32

約数和(自身を含む): 43341480

約数和(自身を除く): 24155840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 293, 586, 1172, 1465, 1637, 2344, 2930, 3274, 5860, 6548, 8185, 11720, 13096, 16370, 32740, 65480, 479641, 959282, 1918564, 2398205, 3837128, 4796410, 9592820, 19185640]

約数ペア:

[(1, 19185640), (2, 9592820), (4, 4796410), (5, 3837128), (8, 2398205), (10, 1918564), (20, 959282), (40, 479641), (293, 65480), (586, 32740), (1172, 16370), (1465, 13096), (1637, 11720), (2344, 8185), (2930, 6548), (3274, 5860)]