201517745

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{281}}^1$

素因数の和:386

約数の個数: 64

約数和(自身を含む): 306996480

約数和(自身を除く): 105478735

約数列:

[1, 5, 11, 13, 17, 55, 59, 65, 85, 143, 187, 221, 281, 295, 649, 715, 767, 935, 1003, 1105, 1405, 2431, 3091, 3245, 3653, 3835, 4777, 5015, 8437, 11033, 12155, 13039, 15455, 16579, 18265, 23885, 40183, 42185, 52547, 55165, 62101, 65195, 82895, 143429, 182369, 200915, 215527, 262735, 281843, 310505, 683111, 717145, 911845, 1077635, 1409215, 2370797, 3100273, 3415555, 3663959, 11853985, 15501365, 18319795, 40303549, 201517745]

約数ペア:

[(1, 201517745), (5, 40303549), (11, 18319795), (13, 15501365), (17, 11853985), (55, 3663959), (59, 3415555), (65, 3100273), (85, 2370797), (143, 1409215), (187, 1077635), (221, 911845), (281, 717145), (295, 683111), (649, 310505), (715, 281843), (767, 262735), (935, 215527), (1003, 200915), (1105, 182369), (1405, 143429), (2431, 82895), (3091, 65195), (3245, 62101), (3653, 55165), (3835, 52547), (4777, 42185), (5015, 40183), (8437, 23885), (11033, 18265), (12155, 16579), (13039, 15455)]