18771020

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{6299}}^1$

素因数の和:6457

約数の個数: 24

約数和(自身を含む): 39690000

約数和(自身を除く): 20918980

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 6299, 12598, 25196, 31495, 62990, 125980, 938551, 1877102, 3754204, 4692755, 9385510, 18771020]

約数ペア:

[(1, 18771020), (2, 9385510), (4, 4692755), (5, 3754204), (10, 1877102), (20, 938551), (149, 125980), (298, 62990), (596, 31495), (745, 25196), (1490, 12598), (2980, 6299)]