2620840

素因数分解:

$2^3\times 5^1\times {\mathrm{65521}}^1$

素因数の和:65532

約数の個数: 16

約数和(自身を含む): 5896980

約数和(自身を除く): 3276140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 65521, 131042, 262084, 327605, 524168, 655210, 1310420, 2620840]

約数ペア:

[(1, 2620840), (2, 1310420), (4, 655210), (5, 524168), (8, 327605), (10, 262084), (20, 131042), (40, 65521)]