19776220

素因数分解:

$2^2\times 5^1\times {\mathrm{379}}^1\times {\mathrm{2609}}^1$

素因数の和:2997

約数の個数: 24

約数和(自身を含む): 41655600

約数和(自身を除く): 21879380

約数列:

[1, 2, 4, 5, 10, 20, 379, 758, 1516, 1895, 2609, 3790, 5218, 7580, 10436, 13045, 26090, 52180, 988811, 1977622, 3955244, 4944055, 9888110, 19776220]

約数ペア:

[(1, 19776220), (2, 9888110), (4, 4944055), (5, 3955244), (10, 1977622), (20, 988811), (379, 52180), (758, 26090), (1516, 13045), (1895, 10436), (2609, 7580), (3790, 5218)]