917806640

素因数分解:

$2^4\times 5^1\times {\mathrm{11472583}}^1$

素因数の和:11472596

約数の個数: 20

約数和(自身を含む): 2133900624

約数和(自身を除く): 1216093984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 11472583, 22945166, 45890332, 57362915, 91780664, 114725830, 183561328, 229451660, 458903320, 917806640]

約数ペア:

[(1, 917806640), (2, 458903320), (4, 229451660), (5, 183561328), (8, 114725830), (10, 91780664), (16, 57362915), (20, 45890332), (40, 22945166), (80, 11472583)]