199977080

素因数分解:

$2^3\times 5^1\times {\mathrm{4999427}}^1$

素因数の和:4999438

約数の個数: 16

約数和(自身を含む): 449948520

約数和(自身を除く): 249971440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4999427, 9998854, 19997708, 24997135, 39995416, 49994270, 99988540, 199977080]

約数ペア:

[(1, 199977080), (2, 99988540), (4, 49994270), (5, 39995416), (8, 24997135), (10, 19997708), (20, 9998854), (40, 4999427)]