166554160

素因数分解:

$2^4\times 5^1\times {\mathrm{2081927}}^1$

素因数の和:2081940

約数の個数: 20

約数和(自身を含む): 387238608

約数和(自身を除く): 220684448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2081927, 4163854, 8327708, 10409635, 16655416, 20819270, 33310832, 41638540, 83277080, 166554160]

約数ペア:

[(1, 166554160), (2, 83277080), (4, 41638540), (5, 33310832), (8, 20819270), (10, 16655416), (16, 10409635), (20, 8327708), (40, 4163854), (80, 2081927)]