12617680

素因数分解:

$2^4\times 5^1\times {\mathrm{157721}}^1$

素因数の和:157734

約数の個数: 20

約数和(自身を含む): 29336292

約数和(自身を除く): 16718612

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157721, 315442, 630884, 788605, 1261768, 1577210, 2523536, 3154420, 6308840, 12617680]

約数ペア:

[(1, 12617680), (2, 6308840), (4, 3154420), (5, 2523536), (8, 1577210), (10, 1261768), (16, 788605), (20, 630884), (40, 315442), (80, 157721)]