19026865

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:154

約数の個数: 48

約数和(自身を含む): 28460160

約数和(自身を除く): 9433295

約数列:

[1, 5, 11, 13, 23, 55, 65, 89, 115, 143, 169, 253, 299, 445, 715, 845, 979, 1157, 1265, 1495, 1859, 2047, 3289, 3887, 4895, 5785, 9295, 10235, 12727, 15041, 16445, 19435, 22517, 26611, 42757, 63635, 75205, 112585, 133055, 165451, 213785, 292721, 345943, 827255, 1463605, 1729715, 3805373, 19026865]

約数ペア:

[(1, 19026865), (5, 3805373), (11, 1729715), (13, 1463605), (23, 827255), (55, 345943), (65, 292721), (89, 213785), (115, 165451), (143, 133055), (169, 112585), (253, 75205), (299, 63635), (445, 42757), (715, 26611), (845, 22517), (979, 19435), (1157, 16445), (1265, 15041), (1495, 12727), (1859, 10235), (2047, 9295), (3289, 5785), (3887, 4895)]