12857860

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{14951}}^1$

素因数の和:15003

約数の個数: 24

約数和(自身を含む): 27631296

約数和(自身を除く): 14773436

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 14951, 29902, 59804, 74755, 149510, 299020, 642893, 1285786, 2571572, 3214465, 6428930, 12857860]

約数ペア:

[(1, 12857860), (2, 6428930), (4, 3214465), (5, 2571572), (10, 1285786), (20, 642893), (43, 299020), (86, 149510), (172, 74755), (215, 59804), (430, 29902), (860, 14951)]