66689360

素因数分解:

$2^4\times 5^1\times {\mathrm{833617}}^1$

素因数の和:833630

約数の個数: 20

約数和(自身を含む): 155052948

約数和(自身を除く): 88363588

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 833617, 1667234, 3334468, 4168085, 6668936, 8336170, 13337872, 16672340, 33344680, 66689360]

約数ペア:

[(1, 66689360), (2, 33344680), (4, 16672340), (5, 13337872), (8, 8336170), (10, 6668936), (16, 4168085), (20, 3334468), (40, 1667234), (80, 833617)]