639774558

素因数分解:

$2^1\times 3^3\times {\mathrm{67}}^1\times {\mathrm{97}}^1\times {\mathrm{1823}}^1$

素因数の和:1998

約数の個数: 64

約数和(自身を含む): 1458616320

約数和(自身を除く): 818841762

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 67, 97, 134, 194, 201, 291, 402, 582, 603, 873, 1206, 1746, 1809, 1823, 2619, 3618, 3646, 5238, 5469, 6499, 10938, 12998, 16407, 19497, 32814, 38994, 49221, 58491, 98442, 116982, 122141, 175473, 176831, 244282, 350946, 353662, 366423, 530493, 732846, 1060986, 1099269, 1591479, 2198538, 3182958, 3297807, 4774437, 6595614, 9548874, 11847677, 23695354, 35543031, 71086062, 106629093, 213258186, 319887279, 639774558]

約数ペア:

[(1, 639774558), (2, 319887279), (3, 213258186), (6, 106629093), (9, 71086062), (18, 35543031), (27, 23695354), (54, 11847677), (67, 9548874), (97, 6595614), (134, 4774437), (194, 3297807), (201, 3182958), (291, 2198538), (402, 1591479), (582, 1099269), (603, 1060986), (873, 732846), (1206, 530493), (1746, 366423), (1809, 353662), (1823, 350946), (2619, 244282), (3618, 176831), (3646, 175473), (5238, 122141), (5469, 116982), (6499, 98442), (10938, 58491), (12998, 49221), (16407, 38994), (19497, 32814)]