20743280

素因数分解:

$2^4\times 5^1\times {\mathrm{383}}^1\times {\mathrm{677}}^1$

素因数の和:1073

約数の個数: 40

約数和(自身を含む): 48425472

約数和(自身を除く): 27682192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 383, 677, 766, 1354, 1532, 1915, 2708, 3064, 3385, 3830, 5416, 6128, 6770, 7660, 10832, 13540, 15320, 27080, 30640, 54160, 259291, 518582, 1037164, 1296455, 2074328, 2592910, 4148656, 5185820, 10371640, 20743280]

約数ペア:

[(1, 20743280), (2, 10371640), (4, 5185820), (5, 4148656), (8, 2592910), (10, 2074328), (16, 1296455), (20, 1037164), (40, 518582), (80, 259291), (383, 54160), (677, 30640), (766, 27080), (1354, 15320), (1532, 13540), (1915, 10832), (2708, 7660), (3064, 6770), (3385, 6128), (3830, 5416)]