4200080

素因数分解:

$2^4\times 5^1\times {\mathrm{52501}}^1$

素因数の和:52514

約数の個数: 20

約数和(自身を含む): 9765372

約数和(自身を除く): 5565292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 52501, 105002, 210004, 262505, 420008, 525010, 840016, 1050020, 2100040, 4200080]

約数ペア:

[(1, 4200080), (2, 2100040), (4, 1050020), (5, 840016), (8, 525010), (10, 420008), (16, 262505), (20, 210004), (40, 105002), (80, 52501)]