210855280

素因数分解:

$2^4\times 5^1\times {\mathrm{2635691}}^1$

素因数の和:2635704

約数の個数: 20

約数和(自身を含む): 490238712

約数和(自身を除く): 279383432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2635691, 5271382, 10542764, 13178455, 21085528, 26356910, 42171056, 52713820, 105427640, 210855280]

約数ペア:

[(1, 210855280), (2, 105427640), (4, 52713820), (5, 42171056), (8, 26356910), (10, 21085528), (16, 13178455), (20, 10542764), (40, 5271382), (80, 2635691)]