25857280

素因数分解:

$2^8\times 5^1\times {\mathrm{20201}}^1$

素因数の和:20222

約数の個数: 36

約数和(自身を含む): 61939332

約数和(自身を除く): 36082052

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 20201, 40402, 80804, 101005, 161608, 202010, 323216, 404020, 646432, 808040, 1292864, 1616080, 2585728, 3232160, 5171456, 6464320, 12928640, 25857280]

約数ペア:

[(1, 25857280), (2, 12928640), (4, 6464320), (5, 5171456), (8, 3232160), (10, 2585728), (16, 1616080), (20, 1292864), (32, 808040), (40, 646432), (64, 404020), (80, 323216), (128, 202010), (160, 161608), (256, 101005), (320, 80804), (640, 40402), (1280, 20201)]