80808880

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{6197}}^1$

素因数の和:6373

約数の個数: 40

約数和(自身を含む): 189063792

約数和(自身を除く): 108254912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 1304, 1630, 2608, 3260, 6197, 6520, 12394, 13040, 24788, 30985, 49576, 61970, 99152, 123940, 247880, 495760, 1010111, 2020222, 4040444, 5050555, 8080888, 10101110, 16161776, 20202220, 40404440, 80808880]

約数ペア:

[(1, 80808880), (2, 40404440), (4, 20202220), (5, 16161776), (8, 10101110), (10, 8080888), (16, 5050555), (20, 4040444), (40, 2020222), (80, 1010111), (163, 495760), (326, 247880), (652, 123940), (815, 99152), (1304, 61970), (1630, 49576), (2608, 30985), (3260, 24788), (6197, 13040), (6520, 12394)]