2690440

素因数分解:

$2^3\times 5^1\times {\mathrm{67261}}^1$

素因数の和:67272

約数の個数: 16

約数和(自身を含む): 6053580

約数和(自身を除く): 3363140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67261, 134522, 269044, 336305, 538088, 672610, 1345220, 2690440]

約数ペア:

[(1, 2690440), (2, 1345220), (4, 672610), (5, 538088), (8, 336305), (10, 269044), (20, 134522), (40, 67261)]