20020105

素因数分解:

$5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{6427}}^1$

素因数の和:6528

約数の個数: 16

約数和(自身を含む): 27768960

約数和(自身を除く): 7748855

約数列:

[1, 5, 7, 35, 89, 445, 623, 3115, 6427, 32135, 44989, 224945, 572003, 2860015, 4004021, 20020105]

約数ペア:

[(1, 20020105), (5, 4004021), (7, 2860015), (35, 572003), (89, 224945), (445, 44989), (623, 32135), (3115, 6427)]