12887890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2339}}^1$

素因数の和:2394

約数の個数: 32

約数和(自身を含む): 25272000

約数和(自身を除く): 12384110

約数列:

[1, 2, 5, 10, 19, 29, 38, 58, 95, 145, 190, 290, 551, 1102, 2339, 2755, 4678, 5510, 11695, 23390, 44441, 67831, 88882, 135662, 222205, 339155, 444410, 678310, 1288789, 2577578, 6443945, 12887890]

約数ペア:

[(1, 12887890), (2, 6443945), (5, 2577578), (10, 1288789), (19, 678310), (29, 444410), (38, 339155), (58, 222205), (95, 135662), (145, 88882), (190, 67831), (290, 44441), (551, 23390), (1102, 11695), (2339, 5510), (2755, 4678)]