688760

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{257}}^1$

素因数の和:335

約数の個数: 32

約数和(自身を含む): 1578960

約数和(自身を除く): 890200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 257, 268, 335, 514, 536, 670, 1028, 1285, 1340, 2056, 2570, 2680, 5140, 10280, 17219, 34438, 68876, 86095, 137752, 172190, 344380, 688760]

約数ペア:

[(1, 688760), (2, 344380), (4, 172190), (5, 137752), (8, 86095), (10, 68876), (20, 34438), (40, 17219), (67, 10280), (134, 5140), (257, 2680), (268, 2570), (335, 2056), (514, 1340), (536, 1285), (670, 1028)]