68838680

素因数分解:

$2^3\times 5^1\times {\mathrm{883}}^1\times {\mathrm{1949}}^1$

素因数の和:2843

約数の個数: 32

約数和(自身を含む): 155142000

約数和(自身を除く): 86303320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 883, 1766, 1949, 3532, 3898, 4415, 7064, 7796, 8830, 9745, 15592, 17660, 19490, 35320, 38980, 77960, 1720967, 3441934, 6883868, 8604835, 13767736, 17209670, 34419340, 68838680]

約数ペア:

[(1, 68838680), (2, 34419340), (4, 17209670), (5, 13767736), (8, 8604835), (10, 6883868), (20, 3441934), (40, 1720967), (883, 77960), (1766, 38980), (1949, 35320), (3532, 19490), (3898, 17660), (4415, 15592), (7064, 9745), (7796, 8830)]