124639280

素因数分解:

$2^4\times 5^1\times {\mathrm{1557991}}^1$

素因数の和:1558004

約数の個数: 20

約数和(自身を含む): 289786512

約数和(自身を除く): 165147232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1557991, 3115982, 6231964, 7789955, 12463928, 15579910, 24927856, 31159820, 62319640, 124639280]

約数ペア:

[(1, 124639280), (2, 62319640), (4, 31159820), (5, 24927856), (8, 15579910), (10, 12463928), (16, 7789955), (20, 6231964), (40, 3115982), (80, 1557991)]