15091780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{379}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 34856640

約数和(自身を除く): 19764860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 181, 220, 362, 379, 724, 758, 905, 1516, 1810, 1895, 1991, 3620, 3790, 3982, 4169, 7580, 7964, 8338, 9955, 16676, 19910, 20845, 39820, 41690, 68599, 83380, 137198, 274396, 342995, 685990, 754589, 1371980, 1509178, 3018356, 3772945, 7545890, 15091780]

約数ペア:

[(1, 15091780), (2, 7545890), (4, 3772945), (5, 3018356), (10, 1509178), (11, 1371980), (20, 754589), (22, 685990), (44, 342995), (55, 274396), (110, 137198), (181, 83380), (220, 68599), (362, 41690), (379, 39820), (724, 20845), (758, 19910), (905, 16676), (1516, 9955), (1810, 8338), (1895, 7964), (1991, 7580), (3620, 4169), (3790, 3982)]