19397960

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{2539}}^1$

素因数の和:2741

約数の個数: 32

約数和(自身を含む): 43891200

約数和(自身を除く): 24493240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 2539, 3820, 5078, 7640, 10156, 12695, 20312, 25390, 50780, 101560, 484949, 969898, 1939796, 2424745, 3879592, 4849490, 9698980, 19397960]

約数ペア:

[(1, 19397960), (2, 9698980), (4, 4849490), (5, 3879592), (8, 2424745), (10, 1939796), (20, 969898), (40, 484949), (191, 101560), (382, 50780), (764, 25390), (955, 20312), (1528, 12695), (1910, 10156), (2539, 7640), (3820, 5078)]