19898720

素因数分解:

$2^5\times 5^1\times {\mathrm{124367}}^1$

素因数の和:124382

約数の個数: 24

約数和(自身を含む): 47011104

約数和(自身を除く): 27112384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 124367, 248734, 497468, 621835, 994936, 1243670, 1989872, 2487340, 3979744, 4974680, 9949360, 19898720]

約数ペア:

[(1, 19898720), (2, 9949360), (4, 4974680), (5, 3979744), (8, 2487340), (10, 1989872), (16, 1243670), (20, 994936), (32, 621835), (40, 497468), (80, 248734), (160, 124367)]