25128800

素因数分解:

$2^5\times 5^2\times {\mathrm{101}}^1\times {\mathrm{311}}^1$

素因数の和:432

約数の個数: 72

約数和(自身を含む): 62152272

約数和(自身を除く): 37023472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 101, 160, 200, 202, 311, 400, 404, 505, 622, 800, 808, 1010, 1244, 1555, 1616, 2020, 2488, 2525, 3110, 3232, 4040, 4976, 5050, 6220, 7775, 8080, 9952, 10100, 12440, 15550, 16160, 20200, 24880, 31100, 31411, 40400, 49760, 62200, 62822, 80800, 124400, 125644, 157055, 248800, 251288, 314110, 502576, 628220, 785275, 1005152, 1256440, 1570550, 2512880, 3141100, 5025760, 6282200, 12564400, 25128800]

約数ペア:

[(1, 25128800), (2, 12564400), (4, 6282200), (5, 5025760), (8, 3141100), (10, 2512880), (16, 1570550), (20, 1256440), (25, 1005152), (32, 785275), (40, 628220), (50, 502576), (80, 314110), (100, 251288), (101, 248800), (160, 157055), (200, 125644), (202, 124400), (311, 80800), (400, 62822), (404, 62200), (505, 49760), (622, 40400), (800, 31411), (808, 31100), (1010, 24880), (1244, 20200), (1555, 16160), (1616, 15550), (2020, 12440), (2488, 10100), (2525, 9952), (3110, 8080), (3232, 7775), (4040, 6220), (4976, 5050)]