1646240

素因数分解:

$2^5\times 5^1\times {\mathrm{10289}}^1$

素因数の和:10304

約数の個数: 24

約数和(自身を含む): 3889620

約数和(自身を除く): 2243380

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 10289, 20578, 41156, 51445, 82312, 102890, 164624, 205780, 329248, 411560, 823120, 1646240]

約数ペア:

[(1, 1646240), (2, 823120), (4, 411560), (5, 329248), (8, 205780), (10, 164624), (16, 102890), (20, 82312), (32, 51445), (40, 41156), (80, 20578), (160, 10289)]