389629580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{12979}}^1$

素因数の和:13086

約数の個数: 48

約数和(自身を含む): 872256000

約数和(自身を除く): 482626420

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 79, 95, 158, 190, 316, 380, 395, 790, 1501, 1580, 3002, 6004, 7505, 12979, 15010, 25958, 30020, 51916, 64895, 129790, 246601, 259580, 493202, 986404, 1025341, 1233005, 2050682, 2466010, 4101364, 4932020, 5126705, 10253410, 19481479, 20506820, 38962958, 77925916, 97407395, 194814790, 389629580]

約数ペア:

[(1, 389629580), (2, 194814790), (4, 97407395), (5, 77925916), (10, 38962958), (19, 20506820), (20, 19481479), (38, 10253410), (76, 5126705), (79, 4932020), (95, 4101364), (158, 2466010), (190, 2050682), (316, 1233005), (380, 1025341), (395, 986404), (790, 493202), (1501, 259580), (1580, 246601), (3002, 129790), (6004, 64895), (7505, 51916), (12979, 30020), (15010, 25958)]