663665

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1$

素因数の和:256

約数の個数: 16

約数和(自身を含む): 864000

約数和(自身を除く): 200335

約数列:

[1, 5, 23, 29, 115, 145, 199, 667, 995, 3335, 4577, 5771, 22885, 28855, 132733, 663665]

約数ペア:

[(1, 663665), (5, 132733), (23, 28855), (29, 22885), (115, 5771), (145, 4577), (199, 3335), (667, 995)]