219980360

素因数分解:

$2^3\times 5^1\times {\mathrm{5499509}}^1$

素因数の和:5499520

約数の個数: 16

約数和(自身を含む): 494955900

約数和(自身を除く): 274975540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5499509, 10999018, 21998036, 27497545, 43996072, 54995090, 109990180, 219980360]

約数ペア:

[(1, 219980360), (2, 109990180), (4, 54995090), (5, 43996072), (8, 27497545), (10, 21998036), (20, 10999018), (40, 5499509)]