28042755

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4639}}^1$

素因数の和:4691

約数の個数: 32

約数和(自身を含む): 49889280

約数和(自身を除く): 21846525

約数列:

[1, 3, 5, 13, 15, 31, 39, 65, 93, 155, 195, 403, 465, 1209, 2015, 4639, 6045, 13917, 23195, 60307, 69585, 143809, 180921, 301535, 431427, 719045, 904605, 1869517, 2157135, 5608551, 9347585, 28042755]

約数ペア:

[(1, 28042755), (3, 9347585), (5, 5608551), (13, 2157135), (15, 1869517), (31, 904605), (39, 719045), (65, 431427), (93, 301535), (155, 180921), (195, 143809), (403, 69585), (465, 60307), (1209, 23195), (2015, 13917), (4639, 6045)]