79486280

素因数分解:

$2^3\times 5^1\times {\mathrm{1987157}}^1$

素因数の和:1987168

約数の個数: 16

約数和(自身を含む): 178844220

約数和(自身を除く): 99357940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1987157, 3974314, 7948628, 9935785, 15897256, 19871570, 39743140, 79486280]

約数ペア:

[(1, 79486280), (2, 39743140), (4, 19871570), (5, 15897256), (8, 9935785), (10, 7948628), (20, 3974314), (40, 1987157)]