1640250081

素因数分解:

$3^4\times {\mathrm{3557}}^1\times {\mathrm{5693}}^1$

素因数の和:9262

約数の個数: 20

約数和(自身を含む): 2451369492

約数和(自身を除く): 811119411

約数列:

[1, 3, 9, 27, 81, 3557, 5693, 10671, 17079, 32013, 51237, 96039, 153711, 288117, 461133, 20250001, 60750003, 182250009, 546750027, 1640250081]

約数ペア:

[(1, 1640250081), (3, 546750027), (9, 182250009), (27, 60750003), (81, 20250001), (3557, 461133), (5693, 288117), (10671, 153711), (17079, 96039), (32013, 51237)]