19857540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2381}}^1$

素因数の和:2532

約数の個数: 48

約数和(自身を含む): 56024640

約数和(自身を除く): 36167100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 139, 278, 417, 556, 695, 834, 1390, 1668, 2085, 2381, 2780, 4170, 4762, 7143, 8340, 9524, 11905, 14286, 23810, 28572, 35715, 47620, 71430, 142860, 330959, 661918, 992877, 1323836, 1654795, 1985754, 3309590, 3971508, 4964385, 6619180, 9928770, 19857540]

約数ペア:

[(1, 19857540), (2, 9928770), (3, 6619180), (4, 4964385), (5, 3971508), (6, 3309590), (10, 1985754), (12, 1654795), (15, 1323836), (20, 992877), (30, 661918), (60, 330959), (139, 142860), (278, 71430), (417, 47620), (556, 35715), (695, 28572), (834, 23810), (1390, 14286), (1668, 11905), (2085, 9524), (2381, 8340), (2780, 7143), (4170, 4762)]