28828840

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{10151}}^1$

素因数の和:10233

約数の個数: 32

約数和(自身を含む): 65784960

約数和(自身を除く): 36956120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 10151, 20302, 40604, 50755, 81208, 101510, 203020, 406040, 720721, 1441442, 2882884, 3603605, 5765768, 7207210, 14414420, 28828840]

約数ペア:

[(1, 28828840), (2, 14414420), (4, 7207210), (5, 5765768), (8, 3603605), (10, 2882884), (20, 1441442), (40, 720721), (71, 406040), (142, 203020), (284, 101510), (355, 81208), (568, 50755), (710, 40604), (1420, 20302), (2840, 10151)]