78903020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{563593}}^1$

素因数の和:563609

約数の個数: 24

約数和(自身を含む): 189367584

約数和(自身を除く): 110464564

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 563593, 1127186, 2254372, 2817965, 3945151, 5635930, 7890302, 11271860, 15780604, 19725755, 39451510, 78903020]

約数ペア:

[(1, 78903020), (2, 39451510), (4, 19725755), (5, 15780604), (7, 11271860), (10, 7890302), (14, 5635930), (20, 3945151), (28, 2817965), (35, 2254372), (70, 1127186), (140, 563593)]