78492140

素因数分解:

$2^2\times 5^1\times {\mathrm{1223}}^1\times {\mathrm{3209}}^1$

素因数の和:4441

約数の個数: 24

約数和(自身を含む): 165019680

約数和(自身を除く): 86527540

約数列:

[1, 2, 4, 5, 10, 20, 1223, 2446, 3209, 4892, 6115, 6418, 12230, 12836, 16045, 24460, 32090, 64180, 3924607, 7849214, 15698428, 19623035, 39246070, 78492140]

約数ペア:

[(1, 78492140), (2, 39246070), (4, 19623035), (5, 15698428), (10, 7849214), (20, 3924607), (1223, 64180), (2446, 32090), (3209, 24460), (4892, 16045), (6115, 12836), (6418, 12230)]