17994920

素因数分解:

$2^3\times 5^1\times {\mathrm{379}}^1\times {\mathrm{1187}}^1$

素因数の和:1577

約数の個数: 32

約数和(自身を含む): 40629600

約数和(自身を除く): 22634680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 379, 758, 1187, 1516, 1895, 2374, 3032, 3790, 4748, 5935, 7580, 9496, 11870, 15160, 23740, 47480, 449873, 899746, 1799492, 2249365, 3598984, 4498730, 8997460, 17994920]

約数ペア:

[(1, 17994920), (2, 8997460), (4, 4498730), (5, 3598984), (8, 2249365), (10, 1799492), (20, 899746), (40, 449873), (379, 47480), (758, 23740), (1187, 15160), (1516, 11870), (1895, 9496), (2374, 7580), (3032, 5935), (3790, 4748)]