18890304080

素因数分解:

$2^4\times 5^1\times {\mathrm{1151}}^1\times {\mathrm{205151}}^1$

素因数の和:206315

約数の個数: 40

約数和(自身を含む): 43958329344

約数和(自身を除く): 25068025264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1151, 2302, 4604, 5755, 9208, 11510, 18416, 23020, 46040, 92080, 205151, 410302, 820604, 1025755, 1641208, 2051510, 3282416, 4103020, 8206040, 16412080, 236128801, 472257602, 944515204, 1180644005, 1889030408, 2361288010, 3778060816, 4722576020, 9445152040, 18890304080]

約数ペア:

[(1, 18890304080), (2, 9445152040), (4, 4722576020), (5, 3778060816), (8, 2361288010), (10, 1889030408), (16, 1180644005), (20, 944515204), (40, 472257602), (80, 236128801), (1151, 16412080), (2302, 8206040), (4604, 4103020), (5755, 3282416), (9208, 2051510), (11510, 1641208), (18416, 1025755), (23020, 820604), (46040, 410302), (92080, 205151)]