2685980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{421}}^1$

素因数の和:470

約数の個数: 48

約数和(自身を含む): 6380640

約数和(自身を除く): 3694660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 110, 116, 145, 220, 290, 319, 421, 580, 638, 842, 1276, 1595, 1684, 2105, 3190, 4210, 4631, 6380, 8420, 9262, 12209, 18524, 23155, 24418, 46310, 48836, 61045, 92620, 122090, 134299, 244180, 268598, 537196, 671495, 1342990, 2685980]

約数ペア:

[(1, 2685980), (2, 1342990), (4, 671495), (5, 537196), (10, 268598), (11, 244180), (20, 134299), (22, 122090), (29, 92620), (44, 61045), (55, 48836), (58, 46310), (110, 24418), (116, 23155), (145, 18524), (220, 12209), (290, 9262), (319, 8420), (421, 6380), (580, 4631), (638, 4210), (842, 3190), (1276, 2105), (1595, 1684)]