28019240

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{5113}}^1$

素因数の和:5261

約数の個数: 32

約数和(自身を含む): 63515880

約数和(自身を除く): 35496640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5113, 5480, 10226, 20452, 25565, 40904, 51130, 102260, 204520, 700481, 1400962, 2801924, 3502405, 5603848, 7004810, 14009620, 28019240]

約数ペア:

[(1, 28019240), (2, 14009620), (4, 7004810), (5, 5603848), (8, 3502405), (10, 2801924), (20, 1400962), (40, 700481), (137, 204520), (274, 102260), (548, 51130), (685, 40904), (1096, 25565), (1370, 20452), (2740, 10226), (5113, 5480)]