1289420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5861}}^1$

素因数の和:5881

約数の個数: 24

約数和(自身を含む): 2954448

約数和(自身を除く): 1665028

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 5861, 11722, 23444, 29305, 58610, 64471, 117220, 128942, 257884, 322355, 644710, 1289420]

約数ペア:

[(1, 1289420), (2, 644710), (4, 322355), (5, 257884), (10, 128942), (11, 117220), (20, 64471), (22, 58610), (44, 29305), (55, 23444), (110, 11722), (220, 5861)]