15131380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{631}}^1$

素因数の和:760

約数の個数: 48

約数和(自身を含む): 35038080

約数和(自身を除く): 19906700

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 109, 110, 218, 220, 436, 545, 631, 1090, 1199, 1262, 2180, 2398, 2524, 3155, 4796, 5995, 6310, 6941, 11990, 12620, 13882, 23980, 27764, 34705, 68779, 69410, 137558, 138820, 275116, 343895, 687790, 756569, 1375580, 1513138, 3026276, 3782845, 7565690, 15131380]

約数ペア:

[(1, 15131380), (2, 7565690), (4, 3782845), (5, 3026276), (10, 1513138), (11, 1375580), (20, 756569), (22, 687790), (44, 343895), (55, 275116), (109, 138820), (110, 137558), (218, 69410), (220, 68779), (436, 34705), (545, 27764), (631, 23980), (1090, 13882), (1199, 12620), (1262, 11990), (2180, 6941), (2398, 6310), (2524, 5995), (3155, 4796)]