81476260

素因数分解:

$2^2\times 5^1\times {\mathrm{1223}}^1\times {\mathrm{3331}}^1$

素因数の和:4563

約数の個数: 24

約数和(自身を含む): 171291456

約数和(自身を除く): 89815196

約数列:

[1, 2, 4, 5, 10, 20, 1223, 2446, 3331, 4892, 6115, 6662, 12230, 13324, 16655, 24460, 33310, 66620, 4073813, 8147626, 16295252, 20369065, 40738130, 81476260]

約数ペア:

[(1, 81476260), (2, 40738130), (4, 20369065), (5, 16295252), (10, 8147626), (20, 4073813), (1223, 66620), (2446, 33310), (3331, 24460), (4892, 16655), (6115, 13324), (6662, 12230)]