78506660

素因数分解:

$2^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{12541}}^1$

素因数の和:12863

約数の個数: 24

約数和(自身を含む): 165403896

約数和(自身を除く): 86897236

約数列:

[1, 2, 4, 5, 10, 20, 313, 626, 1252, 1565, 3130, 6260, 12541, 25082, 50164, 62705, 125410, 250820, 3925333, 7850666, 15701332, 19626665, 39253330, 78506660]

約数ペア:

[(1, 78506660), (2, 39253330), (4, 19626665), (5, 15701332), (10, 7850666), (20, 3925333), (313, 250820), (626, 125410), (1252, 62705), (1565, 50164), (3130, 25082), (6260, 12541)]