1310996840

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{239233}}^1$

素因数の和:239381

約数の個数: 32

約数和(自身を含む): 2971286280

約数和(自身を除く): 1660289440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5480, 239233, 478466, 956932, 1196165, 1913864, 2392330, 4784660, 9569320, 32774921, 65549842, 131099684, 163874605, 262199368, 327749210, 655498420, 1310996840]

約数ペア:

[(1, 1310996840), (2, 655498420), (4, 327749210), (5, 262199368), (8, 163874605), (10, 131099684), (20, 65549842), (40, 32774921), (137, 9569320), (274, 4784660), (548, 2392330), (685, 1913864), (1096, 1196165), (1370, 956932), (2740, 478466), (5480, 239233)]