820025857

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{937}}^1$

素因数の和:1121

約数の個数: 32

約数和(自身を含む): 1003735040

約数和(自身を除く): 183709183

約数列:

[1, 7, 31, 37, 109, 217, 259, 763, 937, 1147, 3379, 4033, 6559, 8029, 23653, 28231, 29047, 34669, 102133, 125023, 203329, 242683, 714931, 875161, 1074739, 3166123, 3778921, 7523173, 22162861, 26452447, 117146551, 820025857]

約数ペア:

[(1, 820025857), (7, 117146551), (31, 26452447), (37, 22162861), (109, 7523173), (217, 3778921), (259, 3166123), (763, 1074739), (937, 875161), (1147, 714931), (3379, 242683), (4033, 203329), (6559, 125023), (8029, 102133), (23653, 34669), (28231, 29047)]