28220255

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1103}}^1$

素因数の和:1175

約数の個数: 32

約数和(自身を含む): 41969664

約数和(自身を除く): 13749409

約数列:

[1, 5, 7, 17, 35, 43, 85, 119, 215, 301, 595, 731, 1103, 1505, 3655, 5117, 5515, 7721, 18751, 25585, 38605, 47429, 93755, 131257, 237145, 332003, 656285, 806293, 1660015, 4031465, 5644051, 28220255]

約数ペア:

[(1, 28220255), (5, 5644051), (7, 4031465), (17, 1660015), (35, 806293), (43, 656285), (85, 332003), (119, 237145), (215, 131257), (301, 93755), (595, 47429), (731, 38605), (1103, 25585), (1505, 18751), (3655, 7721), (5117, 5515)]