79781605

素因数分解:

$5^1\times {\mathrm{151}}^1\times {\mathrm{251}}^1\times {\mathrm{421}}^1$

素因数の和:828

約数の個数: 16

約数和(自身を含む): 96985728

約数和(自身を除く): 17204123

約数列:

[1, 5, 151, 251, 421, 755, 1255, 2105, 37901, 63571, 105671, 189505, 317855, 528355, 15956321, 79781605]

約数ペア:

[(1, 79781605), (5, 15956321), (151, 528355), (251, 317855), (421, 189505), (755, 105671), (1255, 63571), (2105, 37901)]