258060800

素因数分解:

$2^9\times 5^2\times {\mathrm{20161}}^1$

素因数の和:20189

約数の個数: 60

約数和(自身を含む): 639397506

約数和(自身を除く): 381336706

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, 6400, 12800, 20161, 40322, 80644, 100805, 161288, 201610, 322576, 403220, 504025, 645152, 806440, 1008050, 1290304, 1612880, 2016100, 2580608, 3225760, 4032200, 5161216, 6451520, 8064400, 10322432, 12903040, 16128800, 25806080, 32257600, 51612160, 64515200, 129030400, 258060800]

約数ペア:

[(1, 258060800), (2, 129030400), (4, 64515200), (5, 51612160), (8, 32257600), (10, 25806080), (16, 16128800), (20, 12903040), (25, 10322432), (32, 8064400), (40, 6451520), (50, 5161216), (64, 4032200), (80, 3225760), (100, 2580608), (128, 2016100), (160, 1612880), (200, 1290304), (256, 1008050), (320, 806440), (400, 645152), (512, 504025), (640, 403220), (800, 322576), (1280, 201610), (1600, 161288), (2560, 100805), (3200, 80644), (6400, 40322), (12800, 20161)]