25291520

素因数分解:

$2^8\times 5^1\times {\mathrm{19759}}^1$

素因数の和:19780

約数の個数: 36

約数和(自身を含む): 60584160

約数和(自身を除く): 35292640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 19759, 39518, 79036, 98795, 158072, 197590, 316144, 395180, 632288, 790360, 1264576, 1580720, 2529152, 3161440, 5058304, 6322880, 12645760, 25291520]

約数ペア:

[(1, 25291520), (2, 12645760), (4, 6322880), (5, 5058304), (8, 3161440), (10, 2529152), (16, 1580720), (20, 1264576), (32, 790360), (40, 632288), (64, 395180), (80, 316144), (128, 197590), (160, 158072), (256, 98795), (320, 79036), (640, 39518), (1280, 19759)]