251288000

素因数分解:

$2^6\times 5^3\times {\mathrm{101}}^1\times {\mathrm{311}}^1$

素因数の和:439

約数の個数: 112

約数和(自身を含む): 630497088

約数和(自身を除く): 379209088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 101, 125, 160, 200, 202, 250, 311, 320, 400, 404, 500, 505, 622, 800, 808, 1000, 1010, 1244, 1555, 1600, 1616, 2000, 2020, 2488, 2525, 3110, 3232, 4000, 4040, 4976, 5050, 6220, 6464, 7775, 8000, 8080, 9952, 10100, 12440, 12625, 15550, 16160, 19904, 20200, 24880, 25250, 31100, 31411, 32320, 38875, 40400, 49760, 50500, 62200, 62822, 77750, 80800, 99520, 101000, 124400, 125644, 155500, 157055, 161600, 202000, 248800, 251288, 311000, 314110, 404000, 497600, 502576, 622000, 628220, 785275, 808000, 1005152, 1244000, 1256440, 1570550, 2010304, 2488000, 2512880, 3141100, 3926375, 5025760, 6282200, 7852750, 10051520, 12564400, 15705500, 25128800, 31411000, 50257600, 62822000, 125644000, 251288000]

約数ペア:

[(1, 251288000), (2, 125644000), (4, 62822000), (5, 50257600), (8, 31411000), (10, 25128800), (16, 15705500), (20, 12564400), (25, 10051520), (32, 7852750), (40, 6282200), (50, 5025760), (64, 3926375), (80, 3141100), (100, 2512880), (101, 2488000), (125, 2010304), (160, 1570550), (200, 1256440), (202, 1244000), (250, 1005152), (311, 808000), (320, 785275), (400, 628220), (404, 622000), (500, 502576), (505, 497600), (622, 404000), (800, 314110), (808, 311000), (1000, 251288), (1010, 248800), (1244, 202000), (1555, 161600), (1600, 157055), (1616, 155500), (2000, 125644), (2020, 124400), (2488, 101000), (2525, 99520), (3110, 80800), (3232, 77750), (4000, 62822), (4040, 62200), (4976, 50500), (5050, 49760), (6220, 40400), (6464, 38875), (7775, 32320), (8000, 31411), (8080, 31100), (9952, 25250), (10100, 24880), (12440, 20200), (12625, 19904), (15550, 16160)]