15680390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{12959}}^1$

素因数の和:12988

約数の個数: 24

約数和(自身を含む): 31026240

約数和(自身を除く): 15345850

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 12959, 25918, 64795, 129590, 142549, 285098, 712745, 1425490, 1568039, 3136078, 7840195, 15680390]

約数ペア:

[(1, 15680390), (2, 7840195), (5, 3136078), (10, 1568039), (11, 1425490), (22, 712745), (55, 285098), (110, 142549), (121, 129590), (242, 64795), (605, 25918), (1210, 12959)]