31655390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{18731}}^1$

素因数の和:18764

約数の個数: 24

約数和(自身を含む): 61703208

約数和(自身を除く): 30047818

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 18731, 37462, 93655, 187310, 243503, 487006, 1217515, 2435030, 3165539, 6331078, 15827695, 31655390]

約数ペア:

[(1, 31655390), (2, 15827695), (5, 6331078), (10, 3165539), (13, 2435030), (26, 1217515), (65, 487006), (130, 243503), (169, 187310), (338, 93655), (845, 37462), (1690, 18731)]