12878515

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{829}}^1$

素因数の和:1086

約数の個数: 16

約数和(自身を含む): 16732800

約数和(自身を除く): 3854285

約数列:

[1, 5, 13, 65, 239, 829, 1195, 3107, 4145, 10777, 15535, 53885, 198131, 990655, 2575703, 12878515]

約数ペア:

[(1, 12878515), (5, 2575703), (13, 990655), (65, 198131), (239, 53885), (829, 15535), (1195, 10777), (3107, 4145)]