19720585

素因数分解:

$5^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{557}}^1$

素因数の和:732

約数の個数: 16

約数和(自身を含む): 24279696

約数和(自身を除く): 4559111

約数列:

[1, 5, 73, 97, 365, 485, 557, 2785, 7081, 35405, 40661, 54029, 203305, 270145, 3944117, 19720585]

約数ペア:

[(1, 19720585), (5, 3944117), (73, 270145), (97, 203305), (365, 54029), (485, 40661), (557, 35405), (2785, 7081)]