20399730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2753}}^1$

素因数の和:2795

約数の個数: 64

約数和(自身を含む): 55520640

約数和(自身を除く): 35120910

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 19, 26, 30, 38, 39, 57, 65, 78, 95, 114, 130, 190, 195, 247, 285, 390, 494, 570, 741, 1235, 1482, 2470, 2753, 3705, 5506, 7410, 8259, 13765, 16518, 27530, 35789, 41295, 52307, 71578, 82590, 104614, 107367, 156921, 178945, 214734, 261535, 313842, 357890, 523070, 536835, 679991, 784605, 1073670, 1359982, 1569210, 2039973, 3399955, 4079946, 6799910, 10199865, 20399730]

約数ペア:

[(1, 20399730), (2, 10199865), (3, 6799910), (5, 4079946), (6, 3399955), (10, 2039973), (13, 1569210), (15, 1359982), (19, 1073670), (26, 784605), (30, 679991), (38, 536835), (39, 523070), (57, 357890), (65, 313842), (78, 261535), (95, 214734), (114, 178945), (130, 156921), (190, 107367), (195, 104614), (247, 82590), (285, 71578), (390, 52307), (494, 41295), (570, 35789), (741, 27530), (1235, 16518), (1482, 13765), (2470, 8259), (2753, 7410), (3705, 5506)]