20285965

素因数分解:

$5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{2531}}^1$

素因数の和:2772

約数の個数: 16

約数和(自身を含む): 27953280

約数和(自身を除く): 7667315

約数列:

[1, 5, 7, 35, 229, 1145, 1603, 2531, 8015, 12655, 17717, 88585, 579599, 2897995, 4057193, 20285965]

約数ペア:

[(1, 20285965), (5, 4057193), (7, 2897995), (35, 579599), (229, 88585), (1145, 17717), (1603, 12655), (2531, 8015)]