18962380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{359}}^1$

素因数の和:526

約数の個数: 48

約数和(自身を含む): 42336000

約数和(自身を除く): 23373620

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 139, 190, 278, 359, 380, 556, 695, 718, 1390, 1436, 1795, 2641, 2780, 3590, 5282, 6821, 7180, 10564, 13205, 13642, 26410, 27284, 34105, 49901, 52820, 68210, 99802, 136420, 199604, 249505, 499010, 948119, 998020, 1896238, 3792476, 4740595, 9481190, 18962380]

約数ペア:

[(1, 18962380), (2, 9481190), (4, 4740595), (5, 3792476), (10, 1896238), (19, 998020), (20, 948119), (38, 499010), (76, 249505), (95, 199604), (139, 136420), (190, 99802), (278, 68210), (359, 52820), (380, 49901), (556, 34105), (695, 27284), (718, 26410), (1390, 13642), (1436, 13205), (1795, 10564), (2641, 7180), (2780, 6821), (3590, 5282)]