38393840

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{11161}}^1$

素因数の和:11217

約数の個数: 40

約数和(自身を含む): 91349808

約数和(自身を除く): 52955968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 11161, 22322, 44644, 55805, 89288, 111610, 178576, 223220, 446440, 479923, 892880, 959846, 1919692, 2399615, 3839384, 4799230, 7678768, 9598460, 19196920, 38393840]

約数ペア:

[(1, 38393840), (2, 19196920), (4, 9598460), (5, 7678768), (8, 4799230), (10, 3839384), (16, 2399615), (20, 1919692), (40, 959846), (43, 892880), (80, 479923), (86, 446440), (172, 223220), (215, 178576), (344, 111610), (430, 89288), (688, 55805), (860, 44644), (1720, 22322), (3440, 11161)]