18789048280

素因数分解:

$2^3\times 5^1\times {\mathrm{469726207}}^1$

素因数の和:469726218

約数の個数: 16

約数和(自身を含む): 42275358720

約数和(自身を除く): 23486310440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 469726207, 939452414, 1878904828, 2348631035, 3757809656, 4697262070, 9394524140, 18789048280]

約数ペア:

[(1, 18789048280), (2, 9394524140), (4, 4697262070), (5, 3757809656), (8, 2348631035), (10, 1878904828), (20, 939452414), (40, 469726207)]