163339520

素因数分解:

$2^8\times 5^1\times {\mathrm{127609}}^1$

素因数の和:127630

約数の個数: 36

約数和(自身を含む): 391252260

約数和(自身を除く): 227912740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 127609, 255218, 510436, 638045, 1020872, 1276090, 2041744, 2552180, 4083488, 5104360, 8166976, 10208720, 16333952, 20417440, 32667904, 40834880, 81669760, 163339520]

約数ペア:

[(1, 163339520), (2, 81669760), (4, 40834880), (5, 32667904), (8, 20417440), (10, 16333952), (16, 10208720), (20, 8166976), (32, 5104360), (40, 4083488), (64, 2552180), (80, 2041744), (128, 1276090), (160, 1020872), (256, 638045), (320, 510436), (640, 255218), (1280, 127609)]