19849640

素因数分解:

$2^3\times 5^1\times {\mathrm{677}}^1\times {\mathrm{733}}^1$

素因数の和:1421

約数の個数: 32

約数和(自身を含む): 44788680

約数和(自身を除く): 24939040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 677, 733, 1354, 1466, 2708, 2932, 3385, 3665, 5416, 5864, 6770, 7330, 13540, 14660, 27080, 29320, 496241, 992482, 1984964, 2481205, 3969928, 4962410, 9924820, 19849640]

約数ペア:

[(1, 19849640), (2, 9924820), (4, 4962410), (5, 3969928), (8, 2481205), (10, 1984964), (20, 992482), (40, 496241), (677, 29320), (733, 27080), (1354, 14660), (1466, 13540), (2708, 7330), (2932, 6770), (3385, 5864), (3665, 5416)]