80321680

素因数分解:

$2^4\times 5^1\times {\mathrm{227}}^1\times {\mathrm{4423}}^1$

素因数の和:4663

約数の個数: 40

約数和(自身を含む): 187612992

約数和(自身を除く): 107291312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 227, 454, 908, 1135, 1816, 2270, 3632, 4423, 4540, 8846, 9080, 17692, 18160, 22115, 35384, 44230, 70768, 88460, 176920, 353840, 1004021, 2008042, 4016084, 5020105, 8032168, 10040210, 16064336, 20080420, 40160840, 80321680]

約数ペア:

[(1, 80321680), (2, 40160840), (4, 20080420), (5, 16064336), (8, 10040210), (10, 8032168), (16, 5020105), (20, 4016084), (40, 2008042), (80, 1004021), (227, 353840), (454, 176920), (908, 88460), (1135, 70768), (1816, 44230), (2270, 35384), (3632, 22115), (4423, 18160), (4540, 17692), (8846, 9080)]