12439180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47843}}^1$

素因数の和:47865

約数の個数: 24

約数和(自身を含む): 28132272

約数和(自身を除く): 15693092

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 47843, 95686, 191372, 239215, 478430, 621959, 956860, 1243918, 2487836, 3109795, 6219590, 12439180]

約数ペア:

[(1, 12439180), (2, 6219590), (4, 3109795), (5, 2487836), (10, 1243918), (13, 956860), (20, 621959), (26, 478430), (52, 239215), (65, 191372), (130, 95686), (260, 47843)]