28004780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2657}}^1$

素因数の和:2714

約数の個数: 48

約数和(自身を含む): 64302336

約数和(自身を除く): 36297556

約数列:

[1, 2, 4, 5, 10, 17, 20, 31, 34, 62, 68, 85, 124, 155, 170, 310, 340, 527, 620, 1054, 2108, 2635, 2657, 5270, 5314, 10540, 10628, 13285, 26570, 45169, 53140, 82367, 90338, 164734, 180676, 225845, 329468, 411835, 451690, 823670, 903380, 1400239, 1647340, 2800478, 5600956, 7001195, 14002390, 28004780]

約数ペア:

[(1, 28004780), (2, 14002390), (4, 7001195), (5, 5600956), (10, 2800478), (17, 1647340), (20, 1400239), (31, 903380), (34, 823670), (62, 451690), (68, 411835), (85, 329468), (124, 225845), (155, 180676), (170, 164734), (310, 90338), (340, 82367), (527, 53140), (620, 45169), (1054, 26570), (2108, 13285), (2635, 10628), (2657, 10540), (5270, 5314)]