28643735

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{281}}^1$

素因数の和:371

約数の個数: 32

約数和(自身を含む): 38577600

約数和(自身を除く): 9933865

約数列:

[1, 5, 19, 29, 37, 95, 145, 185, 281, 551, 703, 1073, 1405, 2755, 3515, 5339, 5365, 8149, 10397, 20387, 26695, 40745, 51985, 101935, 154831, 197543, 301513, 774155, 987715, 1507565, 5728747, 28643735]

約数ペア:

[(1, 28643735), (5, 5728747), (19, 1507565), (29, 987715), (37, 774155), (95, 301513), (145, 197543), (185, 154831), (281, 101935), (551, 51985), (703, 40745), (1073, 26695), (1405, 20387), (2755, 10397), (3515, 8149), (5339, 5365)]