489542018

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{15887}}^1$

素因数の和:15998

約数の個数: 32

約数和(自身を含む): 878542848

約数和(自身を除く): 389000830

約数列:

[1, 2, 7, 14, 31, 62, 71, 142, 217, 434, 497, 994, 2201, 4402, 15407, 15887, 30814, 31774, 111209, 222418, 492497, 984994, 1127977, 2255954, 3447479, 6894958, 7895839, 15791678, 34967287, 69934574, 244771009, 489542018]

約数ペア:

[(1, 489542018), (2, 244771009), (7, 69934574), (14, 34967287), (31, 15791678), (62, 7895839), (71, 6894958), (142, 3447479), (217, 2255954), (434, 1127977), (497, 984994), (994, 492497), (2201, 222418), (4402, 111209), (15407, 31774), (15887, 30814)]