26781680

素因数分解:

$2^4\times 5^1\times {\mathrm{334771}}^1$

素因数の和:334784

約数の個数: 20

約数和(自身を含む): 62267592

約数和(自身を除く): 35485912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 334771, 669542, 1339084, 1673855, 2678168, 3347710, 5356336, 6695420, 13390840, 26781680]

約数ペア:

[(1, 26781680), (2, 13390840), (4, 6695420), (5, 5356336), (8, 3347710), (10, 2678168), (16, 1673855), (20, 1339084), (40, 669542), (80, 334771)]