2011450000

素因数分解:

$2^4\times 5^5\times 7^2\times {\mathrm{821}}^1$

素因数の和:868

約数の個数: 180

約数和(自身を含む): 5673363444

約数和(自身を除く): 3661913444

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 125, 140, 175, 196, 200, 245, 250, 280, 350, 392, 400, 490, 500, 560, 625, 700, 784, 821, 875, 980, 1000, 1225, 1250, 1400, 1642, 1750, 1960, 2000, 2450, 2500, 2800, 3125, 3284, 3500, 3920, 4105, 4375, 4900, 5000, 5747, 6125, 6250, 6568, 7000, 8210, 8750, 9800, 10000, 11494, 12250, 12500, 13136, 14000, 16420, 17500, 19600, 20525, 21875, 22988, 24500, 25000, 28735, 30625, 32840, 35000, 40229, 41050, 43750, 45976, 49000, 50000, 57470, 61250, 65680, 70000, 80458, 82100, 87500, 91952, 98000, 102625, 114940, 122500, 143675, 153125, 160916, 164200, 175000, 201145, 205250, 229880, 245000, 287350, 306250, 321832, 328400, 350000, 402290, 410500, 459760, 490000, 513125, 574700, 612500, 643664, 718375, 804580, 821000, 1005725, 1026250, 1149400, 1225000, 1436750, 1609160, 1642000, 2011450, 2052500, 2298800, 2450000, 2565625, 2873500, 3218320, 3591875, 4022900, 4105000, 5028625, 5131250, 5747000, 7183750, 8045800, 8210000, 10057250, 10262500, 11494000, 14367500, 16091600, 17959375, 20114500, 20525000, 25143125, 28735000, 35918750, 40229000, 41050000, 50286250, 57470000, 71837500, 80458000, 100572500, 125715625, 143675000, 201145000, 251431250, 287350000, 402290000, 502862500, 1005725000, 2011450000]

約数ペア:

[(1, 2011450000), (2, 1005725000), (4, 502862500), (5, 402290000), (7, 287350000), (8, 251431250), (10, 201145000), (14, 143675000), (16, 125715625), (20, 100572500), (25, 80458000), (28, 71837500), (35, 57470000), (40, 50286250), (49, 41050000), (50, 40229000), (56, 35918750), (70, 28735000), (80, 25143125), (98, 20525000), (100, 20114500), (112, 17959375), (125, 16091600), (140, 14367500), (175, 11494000), (196, 10262500), (200, 10057250), (245, 8210000), (250, 8045800), (280, 7183750), (350, 5747000), (392, 5131250), (400, 5028625), (490, 4105000), (500, 4022900), (560, 3591875), (625, 3218320), (700, 2873500), (784, 2565625), (821, 2450000), (875, 2298800), (980, 2052500), (1000, 2011450), (1225, 1642000), (1250, 1609160), (1400, 1436750), (1642, 1225000), (1750, 1149400), (1960, 1026250), (2000, 1005725), (2450, 821000), (2500, 804580), (2800, 718375), (3125, 643664), (3284, 612500), (3500, 574700), (3920, 513125), (4105, 490000), (4375, 459760), (4900, 410500), (5000, 402290), (5747, 350000), (6125, 328400), (6250, 321832), (6568, 306250), (7000, 287350), (8210, 245000), (8750, 229880), (9800, 205250), (10000, 201145), (11494, 175000), (12250, 164200), (12500, 160916), (13136, 153125), (14000, 143675), (16420, 122500), (17500, 114940), (19600, 102625), (20525, 98000), (21875, 91952), (22988, 87500), (24500, 82100), (25000, 80458), (28735, 70000), (30625, 65680), (32840, 61250), (35000, 57470), (40229, 50000), (41050, 49000), (43750, 45976)]