1663885

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:228

約数の個数: 16

約数和(自身を含む): 2090880

約数和(自身を除く): 426995

約数列:

[1, 5, 43, 71, 109, 215, 355, 545, 3053, 4687, 7739, 15265, 23435, 38695, 332777, 1663885]

約数ペア:

[(1, 1663885), (5, 332777), (43, 38695), (71, 23435), (109, 15265), (215, 7739), (355, 4687), (545, 3053)]