79218800

素因数分解:

$2^4\times 5^2\times {\mathrm{198047}}^1$

素因数の和:198065

約数の個数: 30

約数和(自身を含む): 190324128

約数和(自身を除く): 111105328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 198047, 396094, 792188, 990235, 1584376, 1980470, 3168752, 3960940, 4951175, 7921880, 9902350, 15843760, 19804700, 39609400, 79218800]

約数ペア:

[(1, 79218800), (2, 39609400), (4, 19804700), (5, 15843760), (8, 9902350), (10, 7921880), (16, 4951175), (20, 3960940), (25, 3168752), (40, 1980470), (50, 1584376), (80, 990235), (100, 792188), (200, 396094), (400, 198047)]