520065007

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{277}}^1\times {\mathrm{659}}^1$

素因数の和:991

約数の個数: 32

約数和(自身を含む): 669335040

約数和(自身を除く): 149270033

約数列:

[1, 7, 11, 37, 77, 259, 277, 407, 659, 1939, 2849, 3047, 4613, 7249, 10249, 21329, 24383, 50743, 71743, 112739, 170681, 182543, 268213, 789173, 1277801, 1877491, 2007973, 6754091, 14055811, 47278637, 74295001, 520065007]

約数ペア:

[(1, 520065007), (7, 74295001), (11, 47278637), (37, 14055811), (77, 6754091), (259, 2007973), (277, 1877491), (407, 1277801), (659, 789173), (1939, 268213), (2849, 182543), (3047, 170681), (4613, 112739), (7249, 71743), (10249, 50743), (21329, 24383)]