1981821815

素因数分解:

$5^1\times {\mathrm{419}}^1\times {\mathrm{853}}^1\times {\mathrm{1109}}^1$

素因数の和:2386

約数の個数: 16

約数和(自身を含む): 2388808800

約数和(自身を除く): 406986985

約数列:

[1, 5, 419, 853, 1109, 2095, 4265, 5545, 357407, 464671, 945977, 1787035, 2323355, 4729885, 396364363, 1981821815]

約数ペア:

[(1, 1981821815), (5, 396364363), (419, 4729885), (853, 2323355), (1109, 1787035), (2095, 945977), (4265, 464671), (5545, 357407)]