12749215

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{991}}^1$

素因数の和:1110

約数の個数: 16

約数和(自身を含む): 15998976

約数和(自身を除く): 3249761

約数列:

[1, 5, 31, 83, 155, 415, 991, 2573, 4955, 12865, 30721, 82253, 153605, 411265, 2549843, 12749215]

約数ペア:

[(1, 12749215), (5, 2549843), (31, 411265), (83, 153605), (155, 82253), (415, 30721), (991, 12865), (2573, 4955)]