28981855

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{727}}^1$

素因数の和:823

約数の個数: 32

約数和(自身を含む): 42771456

約数和(自身を除く): 13789601

約数列:

[1, 5, 7, 17, 35, 67, 85, 119, 335, 469, 595, 727, 1139, 2345, 3635, 5089, 5695, 7973, 12359, 25445, 39865, 48709, 61795, 86513, 243545, 340963, 432565, 828053, 1704815, 4140265, 5796371, 28981855]

約数ペア:

[(1, 28981855), (5, 5796371), (7, 4140265), (17, 1704815), (35, 828053), (67, 432565), (85, 340963), (119, 243545), (335, 86513), (469, 61795), (595, 48709), (727, 39865), (1139, 25445), (2345, 12359), (3635, 7973), (5089, 5695)]