256276615

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1663}}^1$

素因数の和:1736

約数の個数: 48

約数和(自身を含む): 389256192

約数和(自身を除く): 132979577

約数列:

[1, 5, 7, 17, 35, 37, 49, 85, 119, 185, 245, 259, 595, 629, 833, 1295, 1663, 1813, 3145, 4165, 4403, 8315, 9065, 11641, 22015, 28271, 30821, 58205, 61531, 81487, 141355, 154105, 197897, 307655, 407435, 430717, 989485, 1046027, 1385279, 2153585, 3015019, 5230135, 6926395, 7322189, 15075095, 36610945, 51255323, 256276615]

約数ペア:

[(1, 256276615), (5, 51255323), (7, 36610945), (17, 15075095), (35, 7322189), (37, 6926395), (49, 5230135), (85, 3015019), (119, 2153585), (185, 1385279), (245, 1046027), (259, 989485), (595, 430717), (629, 407435), (833, 307655), (1295, 197897), (1663, 154105), (1813, 141355), (3145, 81487), (4165, 61531), (4403, 58205), (8315, 30821), (9065, 28271), (11641, 22015)]