20628465

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{163}}^1$

素因数の和:254

約数の個数: 64

約数和(自身を含む): 39674880

約数和(自身を除く): 19046415

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 59, 65, 143, 163, 165, 177, 195, 295, 429, 489, 649, 715, 767, 815, 885, 1793, 1947, 2119, 2145, 2301, 2445, 3245, 3835, 5379, 6357, 8437, 8965, 9617, 9735, 10595, 11505, 23309, 25311, 26895, 28851, 31785, 42185, 48085, 69927, 105787, 116545, 125021, 126555, 144255, 317361, 349635, 375063, 528935, 625105, 1375231, 1586805, 1875315, 4125693, 6876155, 20628465]

約数ペア:

[(1, 20628465), (3, 6876155), (5, 4125693), (11, 1875315), (13, 1586805), (15, 1375231), (33, 625105), (39, 528935), (55, 375063), (59, 349635), (65, 317361), (143, 144255), (163, 126555), (165, 125021), (177, 116545), (195, 105787), (295, 69927), (429, 48085), (489, 42185), (649, 31785), (715, 28851), (767, 26895), (815, 25311), (885, 23309), (1793, 11505), (1947, 10595), (2119, 9735), (2145, 9617), (2301, 8965), (2445, 8437), (3245, 6357), (3835, 5379)]