23788460

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{199}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 51744000

約数和(自身を除く): 27955540

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 139, 172, 199, 215, 278, 398, 430, 556, 695, 796, 860, 995, 1390, 1990, 2780, 3980, 5977, 8557, 11954, 17114, 23908, 27661, 29885, 34228, 42785, 55322, 59770, 85570, 110644, 119540, 138305, 171140, 276610, 553220, 1189423, 2378846, 4757692, 5947115, 11894230, 23788460]

約数ペア:

[(1, 23788460), (2, 11894230), (4, 5947115), (5, 4757692), (10, 2378846), (20, 1189423), (43, 553220), (86, 276610), (139, 171140), (172, 138305), (199, 119540), (215, 110644), (278, 85570), (398, 59770), (430, 55322), (556, 42785), (695, 34228), (796, 29885), (860, 27661), (995, 23908), (1390, 17114), (1990, 11954), (2780, 8557), (3980, 5977)]