889985

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:208

約数の個数: 16

約数和(自身を含む): 1140480

約数和(自身を除く): 250495

約数列:

[1, 5, 23, 71, 109, 115, 355, 545, 1633, 2507, 7739, 8165, 12535, 38695, 177997, 889985]

約数ペア:

[(1, 889985), (5, 177997), (23, 38695), (71, 12535), (109, 8165), (115, 7739), (355, 2507), (545, 1633)]