20975120

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{9041}}^1$

素因数の和:9083

約数の個数: 40

約数和(自身を含む): 50454360

約数和(自身を除く): 29479240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 9041, 18082, 36164, 45205, 72328, 90410, 144656, 180820, 262189, 361640, 524378, 723280, 1048756, 1310945, 2097512, 2621890, 4195024, 5243780, 10487560, 20975120]

約数ペア:

[(1, 20975120), (2, 10487560), (4, 5243780), (5, 4195024), (8, 2621890), (10, 2097512), (16, 1310945), (20, 1048756), (29, 723280), (40, 524378), (58, 361640), (80, 262189), (116, 180820), (145, 144656), (232, 90410), (290, 72328), (464, 45205), (580, 36164), (1160, 18082), (2320, 9041)]