5391985

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{809}}^1$

素因数の和:888

約数の個数: 16

約数和(自身を含む): 6842880

約数和(自身を除く): 1450895

約数列:

[1, 5, 31, 43, 155, 215, 809, 1333, 4045, 6665, 25079, 34787, 125395, 173935, 1078397, 5391985]

約数ペア:

[(1, 5391985), (5, 1078397), (31, 173935), (43, 125395), (155, 34787), (215, 25079), (809, 6665), (1333, 4045)]