90647240

素因数分解:

$2^3\times 5^1\times {\mathrm{997}}^1\times {\mathrm{2273}}^1$

素因数の和:3281

約数の個数: 32

約数和(自身を含む): 204250680

約数和(自身を除く): 113603440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 997, 1994, 2273, 3988, 4546, 4985, 7976, 9092, 9970, 11365, 18184, 19940, 22730, 39880, 45460, 90920, 2266181, 4532362, 9064724, 11330905, 18129448, 22661810, 45323620, 90647240]

約数ペア:

[(1, 90647240), (2, 45323620), (4, 22661810), (5, 18129448), (8, 11330905), (10, 9064724), (20, 4532362), (40, 2266181), (997, 90920), (1994, 45460), (2273, 39880), (3988, 22730), (4546, 19940), (4985, 18184), (7976, 11365), (9092, 9970)]