28239365

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1789}}^1$

素因数の和:1853

約数の個数: 32

約数和(自身を含む): 43303680

約数和(自身を除く): 15064315

約数列:

[1, 5, 7, 11, 35, 41, 55, 77, 205, 287, 385, 451, 1435, 1789, 2255, 3157, 8945, 12523, 15785, 19679, 62615, 73349, 98395, 137753, 366745, 513443, 688765, 806839, 2567215, 4034195, 5647873, 28239365]

約数ペア:

[(1, 28239365), (5, 5647873), (7, 4034195), (11, 2567215), (35, 806839), (41, 688765), (55, 513443), (77, 366745), (205, 137753), (287, 98395), (385, 73349), (451, 62615), (1435, 19679), (1789, 15785), (2255, 12523), (3157, 8945)]