12886120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{24781}}^1$

素因数の和:24805

約数の個数: 32

約数和(自身を含む): 31225320

約数和(自身を除く): 18339200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 24781, 49562, 99124, 123905, 198248, 247810, 322153, 495620, 644306, 991240, 1288612, 1610765, 2577224, 3221530, 6443060, 12886120]

約数ペア:

[(1, 12886120), (2, 6443060), (4, 3221530), (5, 2577224), (8, 1610765), (10, 1288612), (13, 991240), (20, 644306), (26, 495620), (40, 322153), (52, 247810), (65, 198248), (104, 123905), (130, 99124), (260, 49562), (520, 24781)]