80141680

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{23297}}^1$

素因数の和:23353

約数の個数: 40

約数和(自身を含む): 190670832

約数和(自身を除く): 110529152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 23297, 46594, 93188, 116485, 186376, 232970, 372752, 465940, 931880, 1001771, 1863760, 2003542, 4007084, 5008855, 8014168, 10017710, 16028336, 20035420, 40070840, 80141680]

約数ペア:

[(1, 80141680), (2, 40070840), (4, 20035420), (5, 16028336), (8, 10017710), (10, 8014168), (16, 5008855), (20, 4007084), (40, 2003542), (43, 1863760), (80, 1001771), (86, 931880), (172, 465940), (215, 372752), (344, 232970), (430, 186376), (688, 116485), (860, 93188), (1720, 46594), (3440, 23297)]