20814680

素因数分解:

$2^3\times 5^1\times {\mathrm{379}}^1\times {\mathrm{1373}}^1$

素因数の和:1763

約数の個数: 32

約数和(自身を含む): 46990800

約数和(自身を除く): 26176120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 379, 758, 1373, 1516, 1895, 2746, 3032, 3790, 5492, 6865, 7580, 10984, 13730, 15160, 27460, 54920, 520367, 1040734, 2081468, 2601835, 4162936, 5203670, 10407340, 20814680]

約数ペア:

[(1, 20814680), (2, 10407340), (4, 5203670), (5, 4162936), (8, 2601835), (10, 2081468), (20, 1040734), (40, 520367), (379, 54920), (758, 27460), (1373, 15160), (1516, 13730), (1895, 10984), (2746, 7580), (3032, 6865), (3790, 5492)]