12858890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^2\times {\mathrm{139}}^1$

素因数の和:215

約数の個数: 48

約数和(自身を含む): 26339040

約数和(自身を除く): 13480150

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 110, 139, 145, 278, 290, 319, 638, 695, 841, 1390, 1529, 1595, 1682, 3058, 3190, 4031, 4205, 7645, 8062, 8410, 9251, 15290, 18502, 20155, 40310, 44341, 46255, 88682, 92510, 116899, 221705, 233798, 443410, 584495, 1168990, 1285889, 2571778, 6429445, 12858890]

約数ペア:

[(1, 12858890), (2, 6429445), (5, 2571778), (10, 1285889), (11, 1168990), (22, 584495), (29, 443410), (55, 233798), (58, 221705), (110, 116899), (139, 92510), (145, 88682), (278, 46255), (290, 44341), (319, 40310), (638, 20155), (695, 18502), (841, 15290), (1390, 9251), (1529, 8410), (1595, 8062), (1682, 7645), (3058, 4205), (3190, 4031)]