19278545

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{457}}^1$

素因数の和:545

約数の個数: 32

約数和(自身を含む): 27699840

約数和(自身を除く): 8421295

約数列:

[1, 5, 11, 13, 55, 59, 65, 143, 295, 457, 649, 715, 767, 2285, 3245, 3835, 5027, 5941, 8437, 25135, 26963, 29705, 42185, 65351, 134815, 296593, 326755, 350519, 1482965, 1752595, 3855709, 19278545]

約数ペア:

[(1, 19278545), (5, 3855709), (11, 1752595), (13, 1482965), (55, 350519), (59, 326755), (65, 296593), (143, 134815), (295, 65351), (457, 42185), (649, 29705), (715, 26963), (767, 25135), (2285, 8437), (3245, 5941), (3835, 5027)]