80378215

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{643}}^1\times {\mathrm{1087}}^1$

素因数の和:1758

約数の個数: 16

約数和(自身を含む): 100896768

約数和(自身を除く): 20518553

約数列:

[1, 5, 23, 115, 643, 1087, 3215, 5435, 14789, 25001, 73945, 125005, 698941, 3494705, 16075643, 80378215]

約数ペア:

[(1, 80378215), (5, 16075643), (23, 3494705), (115, 698941), (643, 125005), (1087, 73945), (3215, 25001), (5435, 14789)]