7918740040

素因数分解:

$2^3\times 5^1\times {\mathrm{197968501}}^1$

素因数の和:197968512

約数の個数: 16

約数和(自身を含む): 17817165180

約数和(自身を除く): 9898425140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197968501, 395937002, 791874004, 989842505, 1583748008, 1979685010, 3959370020, 7918740040]

約数ペア:

[(1, 7918740040), (2, 3959370020), (4, 1979685010), (5, 1583748008), (8, 989842505), (10, 791874004), (20, 395937002), (40, 197968501)]