9800080

素因数分解:

$2^4\times 5^1\times {\mathrm{122501}}^1$

素因数の和:122514

約数の個数: 20

約数和(自身を含む): 22785372

約数和(自身を除く): 12985292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 122501, 245002, 490004, 612505, 980008, 1225010, 1960016, 2450020, 4900040, 9800080]

約数ペア:

[(1, 9800080), (2, 4900040), (4, 2450020), (5, 1960016), (8, 1225010), (10, 980008), (16, 612505), (20, 490004), (40, 245002), (80, 122501)]