20310345

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:172

約数の個数: 80

約数和(自身を含む): 40981248

約数和(自身を除く): 20670903

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 47, 55, 81, 97, 99, 135, 141, 165, 235, 291, 297, 405, 423, 485, 495, 517, 705, 873, 891, 1067, 1269, 1455, 1485, 1551, 2115, 2585, 2619, 3201, 3807, 4365, 4455, 4559, 4653, 5335, 6345, 7755, 7857, 9603, 13095, 13677, 13959, 16005, 19035, 22795, 23265, 28809, 39285, 41031, 41877, 48015, 50149, 68385, 69795, 86427, 123093, 144045, 150447, 205155, 209385, 250745, 369279, 432135, 451341, 615465, 752235, 1354023, 1846395, 2256705, 4062069, 6770115, 20310345]

約数ペア:

[(1, 20310345), (3, 6770115), (5, 4062069), (9, 2256705), (11, 1846395), (15, 1354023), (27, 752235), (33, 615465), (45, 451341), (47, 432135), (55, 369279), (81, 250745), (97, 209385), (99, 205155), (135, 150447), (141, 144045), (165, 123093), (235, 86427), (291, 69795), (297, 68385), (405, 50149), (423, 48015), (485, 41877), (495, 41031), (517, 39285), (705, 28809), (873, 23265), (891, 22795), (1067, 19035), (1269, 16005), (1455, 13959), (1485, 13677), (1551, 13095), (2115, 9603), (2585, 7857), (2619, 7755), (3201, 6345), (3807, 5335), (4365, 4653), (4455, 4559)]