81385300

素因数分解:

$2^2\times 5^2\times {\mathrm{359}}^1\times {\mathrm{2267}}^1$

素因数の和:2640

約数の個数: 36

約数和(自身を含む): 177176160

約数和(自身を除く): 95790860

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 359, 718, 1436, 1795, 2267, 3590, 4534, 7180, 8975, 9068, 11335, 17950, 22670, 35900, 45340, 56675, 113350, 226700, 813853, 1627706, 3255412, 4069265, 8138530, 16277060, 20346325, 40692650, 81385300]

約数ペア:

[(1, 81385300), (2, 40692650), (4, 20346325), (5, 16277060), (10, 8138530), (20, 4069265), (25, 3255412), (50, 1627706), (100, 813853), (359, 226700), (718, 113350), (1436, 56675), (1795, 45340), (2267, 35900), (3590, 22670), (4534, 17950), (7180, 11335), (8975, 9068)]