64460825

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1$

素因数の和:139

約数の個数: 72

約数和(自身を含む): 100752480

約数和(自身を除く): 36291655

約数列:

[1, 5, 11, 13, 19, 25, 55, 65, 73, 95, 143, 169, 209, 247, 275, 325, 365, 475, 715, 803, 845, 949, 1045, 1235, 1387, 1825, 1859, 2717, 3211, 3575, 4015, 4225, 4745, 5225, 6175, 6935, 9295, 10439, 12337, 13585, 15257, 16055, 18031, 20075, 23725, 34675, 35321, 46475, 52195, 61685, 67925, 76285, 80275, 90155, 135707, 176605, 198341, 234403, 260975, 308425, 381425, 450775, 678535, 883025, 991705, 1172015, 2578433, 3392675, 4958525, 5860075, 12892165, 64460825]

約数ペア:

[(1, 64460825), (5, 12892165), (11, 5860075), (13, 4958525), (19, 3392675), (25, 2578433), (55, 1172015), (65, 991705), (73, 883025), (95, 678535), (143, 450775), (169, 381425), (209, 308425), (247, 260975), (275, 234403), (325, 198341), (365, 176605), (475, 135707), (715, 90155), (803, 80275), (845, 76285), (949, 67925), (1045, 61685), (1235, 52195), (1387, 46475), (1825, 35321), (1859, 34675), (2717, 23725), (3211, 20075), (3575, 18031), (4015, 16055), (4225, 15257), (4745, 13585), (5225, 12337), (6175, 10439), (6935, 9295)]