20423105

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{2309}}^1$

素因数の和:2404

約数の個数: 16

約数和(自身を含む): 25779600

約数和(自身を除く): 5356495

約数列:

[1, 5, 29, 61, 145, 305, 1769, 2309, 8845, 11545, 66961, 140849, 334805, 704245, 4084621, 20423105]

約数ペア:

[(1, 20423105), (5, 4084621), (29, 704245), (61, 334805), (145, 140849), (305, 66961), (1769, 11545), (2309, 8845)]