19996164080

素因数分解:

$2^4\times 5^1\times {\mathrm{727}}^1\times {\mathrm{343813}}^1$

素因数の和:344553

約数の個数: 40

約数和(自身を含む): 46555166112

約数和(自身を除く): 26559002032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 727, 1454, 2908, 3635, 5816, 7270, 11632, 14540, 29080, 58160, 343813, 687626, 1375252, 1719065, 2750504, 3438130, 5501008, 6876260, 13752520, 27505040, 249952051, 499904102, 999808204, 1249760255, 1999616408, 2499520510, 3999232816, 4999041020, 9998082040, 19996164080]

約数ペア:

[(1, 19996164080), (2, 9998082040), (4, 4999041020), (5, 3999232816), (8, 2499520510), (10, 1999616408), (16, 1249760255), (20, 999808204), (40, 499904102), (80, 249952051), (727, 27505040), (1454, 13752520), (2908, 6876260), (3635, 5501008), (5816, 3438130), (7270, 2750504), (11632, 1719065), (14540, 1375252), (29080, 687626), (58160, 343813)]