18540680

素因数分解:

$2^3\times 5^1\times {\mathrm{379}}^1\times {\mathrm{1223}}^1$

素因数の和:1613

約数の個数: 32

約数和(自身を含む): 41860800

約数和(自身を除く): 23320120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 379, 758, 1223, 1516, 1895, 2446, 3032, 3790, 4892, 6115, 7580, 9784, 12230, 15160, 24460, 48920, 463517, 927034, 1854068, 2317585, 3708136, 4635170, 9270340, 18540680]

約数ペア:

[(1, 18540680), (2, 9270340), (4, 4635170), (5, 3708136), (8, 2317585), (10, 1854068), (20, 927034), (40, 463517), (379, 48920), (758, 24460), (1223, 15160), (1516, 12230), (1895, 9784), (2446, 7580), (3032, 6115), (3790, 4892)]