25306905

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:250

約数の個数: 48

約数和(自身を含む): 44798400

約数和(自身を除く): 19491495

約数列:

[1, 3, 5, 13, 15, 39, 65, 67, 149, 169, 195, 201, 335, 447, 507, 745, 845, 871, 1005, 1937, 2235, 2535, 2613, 4355, 5811, 9685, 9983, 11323, 13065, 25181, 29055, 29949, 33969, 49915, 56615, 75543, 125905, 129779, 149745, 169845, 377715, 389337, 648895, 1687127, 1946685, 5061381, 8435635, 25306905]

約数ペア:

[(1, 25306905), (3, 8435635), (5, 5061381), (13, 1946685), (15, 1687127), (39, 648895), (65, 389337), (67, 377715), (149, 169845), (169, 149745), (195, 129779), (201, 125905), (335, 75543), (447, 56615), (507, 49915), (745, 33969), (845, 29949), (871, 29055), (1005, 25181), (1937, 13065), (2235, 11323), (2535, 9983), (2613, 9685), (4355, 5811)]