28072185

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{283}}^1\times {\mathrm{389}}^1$

素因数の和:697

約数の個数: 32

約数和(自身を含む): 47848320

約数和(自身を除く): 19776135

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 283, 389, 849, 1167, 1415, 1945, 4245, 4811, 5835, 6613, 14433, 19839, 24055, 33065, 72165, 99195, 110087, 330261, 550435, 1651305, 1871479, 5614437, 9357395, 28072185]

約数ペア:

[(1, 28072185), (3, 9357395), (5, 5614437), (15, 1871479), (17, 1651305), (51, 550435), (85, 330261), (255, 110087), (283, 99195), (389, 72165), (849, 33065), (1167, 24055), (1415, 19839), (1945, 14433), (4245, 6613), (4811, 5835)]