28813340

素因数分解:

$2^2\times 5^1\times {\mathrm{359}}^1\times {\mathrm{4013}}^1$

素因数の和:4381

約数の個数: 24

約数和(自身を含む): 60691680

約数和(自身を除く): 31878340

約数列:

[1, 2, 4, 5, 10, 20, 359, 718, 1436, 1795, 3590, 4013, 7180, 8026, 16052, 20065, 40130, 80260, 1440667, 2881334, 5762668, 7203335, 14406670, 28813340]

約数ペア:

[(1, 28813340), (2, 14406670), (4, 7203335), (5, 5762668), (10, 2881334), (20, 1440667), (359, 80260), (718, 40130), (1436, 20065), (1795, 16052), (3590, 8026), (4013, 7180)]