12908540

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{4111}}^1$

素因数の和:4277

約数の個数: 24

約数和(自身を含む): 27287232

約数和(自身を除く): 14378692

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 4111, 8222, 16444, 20555, 41110, 82220, 645427, 1290854, 2581708, 3227135, 6454270, 12908540]

約数ペア:

[(1, 12908540), (2, 6454270), (4, 3227135), (5, 2581708), (10, 1290854), (20, 645427), (157, 82220), (314, 41110), (628, 20555), (785, 16444), (1570, 8222), (3140, 4111)]