80780800

素因数分解:

$2^9\times 5^2\times {\mathrm{6311}}^1$

素因数の和:6339

約数の個数: 60

約数和(自身を含む): 200172456

約数和(自身を除く): 119391656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 512, 640, 800, 1280, 1600, 2560, 3200, 6311, 6400, 12622, 12800, 25244, 31555, 50488, 63110, 100976, 126220, 157775, 201952, 252440, 315550, 403904, 504880, 631100, 807808, 1009760, 1262200, 1615616, 2019520, 2524400, 3231232, 4039040, 5048800, 8078080, 10097600, 16156160, 20195200, 40390400, 80780800]

約数ペア:

[(1, 80780800), (2, 40390400), (4, 20195200), (5, 16156160), (8, 10097600), (10, 8078080), (16, 5048800), (20, 4039040), (25, 3231232), (32, 2524400), (40, 2019520), (50, 1615616), (64, 1262200), (80, 1009760), (100, 807808), (128, 631100), (160, 504880), (200, 403904), (256, 315550), (320, 252440), (400, 201952), (512, 157775), (640, 126220), (800, 100976), (1280, 63110), (1600, 50488), (2560, 31555), (3200, 25244), (6311, 12800), (6400, 12622)]