28345765

素因数分解:

$5^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{911}}^1$

素因数の和:1057

約数の個数: 24

約数和(自身を含む): 39923712

約数和(自身を除く): 11577947

約数列:

[1, 5, 7, 35, 49, 127, 245, 635, 889, 911, 4445, 4555, 6223, 6377, 31115, 31885, 44639, 115697, 223195, 578485, 809879, 4049395, 5669153, 28345765]

約数ペア:

[(1, 28345765), (5, 5669153), (7, 4049395), (35, 809879), (49, 578485), (127, 223195), (245, 115697), (635, 44639), (889, 31885), (911, 31115), (4445, 6377), (4555, 6223)]