81228565

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{401}}^1$

素因数の和:573

約数の個数: 32

約数和(自身を含む): 111144960

約数和(自身を除く): 29916395

約数列:

[1, 5, 11, 29, 55, 127, 145, 319, 401, 635, 1397, 1595, 2005, 3683, 4411, 6985, 11629, 18415, 22055, 40513, 50927, 58145, 127919, 202565, 254635, 560197, 639595, 1476883, 2800985, 7384415, 16245713, 81228565]

約数ペア:

[(1, 81228565), (5, 16245713), (11, 7384415), (29, 2800985), (55, 1476883), (127, 639595), (145, 560197), (319, 254635), (401, 202565), (635, 127919), (1397, 58145), (1595, 50927), (2005, 40513), (3683, 22055), (4411, 18415), (6985, 11629)]