78897140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{563551}}^1$

素因数の和:563567

約数の個数: 24

約数和(自身を含む): 189353472

約数和(自身を除く): 110456332

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 563551, 1127102, 2254204, 2817755, 3944857, 5635510, 7889714, 11271020, 15779428, 19724285, 39448570, 78897140]

約数ペア:

[(1, 78897140), (2, 39448570), (4, 19724285), (5, 15779428), (7, 11271020), (10, 7889714), (14, 5635510), (20, 3944857), (28, 2817755), (35, 2254204), (70, 1127102), (140, 563551)]