40390400

素因数分解:

$2^8\times 5^2\times {\mathrm{6311}}^1$

素因数の和:6337

約数の個数: 54

約数和(自身を含む): 99988392

約数和(自身を除く): 59597992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 640, 800, 1280, 1600, 3200, 6311, 6400, 12622, 25244, 31555, 50488, 63110, 100976, 126220, 157775, 201952, 252440, 315550, 403904, 504880, 631100, 807808, 1009760, 1262200, 1615616, 2019520, 2524400, 4039040, 5048800, 8078080, 10097600, 20195200, 40390400]

約数ペア:

[(1, 40390400), (2, 20195200), (4, 10097600), (5, 8078080), (8, 5048800), (10, 4039040), (16, 2524400), (20, 2019520), (25, 1615616), (32, 1262200), (40, 1009760), (50, 807808), (64, 631100), (80, 504880), (100, 403904), (128, 315550), (160, 252440), (200, 201952), (256, 157775), (320, 126220), (400, 100976), (640, 63110), (800, 50488), (1280, 31555), (1600, 25244), (3200, 12622), (6311, 6400)]