18200080

素因数分解:

$2^4\times 5^1\times {\mathrm{227501}}^1$

素因数の和:227514

約数の個数: 20

約数和(自身を含む): 42315372

約数和(自身を除く): 24115292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 227501, 455002, 910004, 1137505, 1820008, 2275010, 3640016, 4550020, 9100040, 18200080]

約数ペア:

[(1, 18200080), (2, 9100040), (4, 4550020), (5, 3640016), (8, 2275010), (10, 1820008), (16, 1137505), (20, 910004), (40, 455002), (80, 227501)]