207629780

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{25889}}^1$

素因数の和:26299

約数の個数: 24

約数和(自身を含む): 437126760

約数和(自身を除く): 229496980

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 4010, 8020, 25889, 51778, 103556, 129445, 258890, 517780, 10381489, 20762978, 41525956, 51907445, 103814890, 207629780]

約数ペア:

[(1, 207629780), (2, 103814890), (4, 51907445), (5, 41525956), (10, 20762978), (20, 10381489), (401, 517780), (802, 258890), (1604, 129445), (2005, 103556), (4010, 51778), (8020, 25889)]