51690905

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{401}}^1$

素因数の和:569

約数の個数: 32

約数和(自身を含む): 74096640

約数和(自身を除く): 22405735

約数列:

[1, 5, 7, 29, 35, 127, 145, 203, 401, 635, 889, 1015, 2005, 2807, 3683, 4445, 11629, 14035, 18415, 25781, 50927, 58145, 81403, 128905, 254635, 356489, 407015, 1476883, 1782445, 7384415, 10338181, 51690905]

約数ペア:

[(1, 51690905), (5, 10338181), (7, 7384415), (29, 1782445), (35, 1476883), (127, 407015), (145, 356489), (203, 254635), (401, 128905), (635, 81403), (889, 58145), (1015, 50927), (2005, 25781), (2807, 18415), (3683, 14035), (4445, 11629)]