20068885

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1\times {\mathrm{439}}^1$

素因数の和:708

約数の個数: 16

約数和(自身を含む): 24837120

約数和(自身を除く): 4768235

約数列:

[1, 5, 41, 205, 223, 439, 1115, 2195, 9143, 17999, 45715, 89995, 97897, 489485, 4013777, 20068885]

約数ペア:

[(1, 20068885), (5, 4013777), (41, 489485), (205, 97897), (223, 89995), (439, 45715), (1115, 17999), (2195, 9143)]