78650980

素因数分解:

$2^2\times 5^1\times {\mathrm{809}}^1\times {\mathrm{4861}}^1$

素因数の和:5679

約数の個数: 24

約数和(自身を含む): 165405240

約数和(自身を除く): 86754260

約数列:

[1, 2, 4, 5, 10, 20, 809, 1618, 3236, 4045, 4861, 8090, 9722, 16180, 19444, 24305, 48610, 97220, 3932549, 7865098, 15730196, 19662745, 39325490, 78650980]

約数ペア:

[(1, 78650980), (2, 39325490), (4, 19662745), (5, 15730196), (10, 7865098), (20, 3932549), (809, 97220), (1618, 48610), (3236, 24305), (4045, 19444), (4861, 16180), (8090, 9722)]