78426740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{560191}}^1$

素因数の和:560207

約数の個数: 24

約数和(自身を含む): 188224512

約数和(自身を除く): 109797772

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 560191, 1120382, 2240764, 2800955, 3921337, 5601910, 7842674, 11203820, 15685348, 19606685, 39213370, 78426740]

約数ペア:

[(1, 78426740), (2, 39213370), (4, 19606685), (5, 15685348), (7, 11203820), (10, 7842674), (14, 5601910), (20, 3921337), (28, 2800955), (35, 2240764), (70, 1120382), (140, 560191)]