9979120

素因数分解:

$2^4\times 5^1\times {\mathrm{124739}}^1$

素因数の和:124752

約数の個数: 20

約数和(自身を含む): 23201640

約数和(自身を除く): 13222520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 124739, 249478, 498956, 623695, 997912, 1247390, 1995824, 2494780, 4989560, 9979120]

約数ペア:

[(1, 9979120), (2, 4989560), (4, 2494780), (5, 1995824), (8, 1247390), (10, 997912), (16, 623695), (20, 498956), (40, 249478), (80, 124739)]