20249285

素因数分解:

$5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1$

素因数の和:293

約数の個数: 32

約数和(自身を含む): 28933632

約数和(自身を除く): 8684347

約数列:

[1, 5, 7, 35, 41, 103, 137, 205, 287, 515, 685, 721, 959, 1435, 3605, 4223, 4795, 5617, 14111, 21115, 28085, 29561, 39319, 70555, 98777, 147805, 196595, 493885, 578551, 2892755, 4049857, 20249285]

約数ペア:

[(1, 20249285), (5, 4049857), (7, 2892755), (35, 578551), (41, 493885), (103, 196595), (137, 147805), (205, 98777), (287, 70555), (515, 39319), (685, 29561), (721, 28085), (959, 21115), (1435, 14111), (3605, 5617), (4223, 4795)]