21000481250

素因数分解:

$2^1\times 5^5\times 7^2\times {\mathrm{47}}^1\times {\mathrm{1459}}^1$

素因数の和:1547

約数の個数: 144

約数和(自身を含む): 46808254080

約数和(自身を除く): 25807772830

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 47, 49, 50, 70, 94, 98, 125, 175, 235, 245, 250, 329, 350, 470, 490, 625, 658, 875, 1175, 1225, 1250, 1459, 1645, 1750, 2303, 2350, 2450, 2918, 3125, 3290, 4375, 4606, 5875, 6125, 6250, 7295, 8225, 8750, 10213, 11515, 11750, 12250, 14590, 16450, 20426, 21875, 23030, 29375, 30625, 36475, 41125, 43750, 51065, 57575, 58750, 61250, 68573, 71491, 72950, 82250, 102130, 115150, 137146, 142982, 146875, 153125, 182375, 205625, 255325, 287875, 293750, 306250, 342865, 357455, 364750, 411250, 480011, 510650, 575750, 685730, 714910, 911875, 960022, 1028125, 1276625, 1439375, 1714325, 1787275, 1823750, 2056250, 2400055, 2553250, 2878750, 3360077, 3428650, 3574550, 4559375, 4800110, 6383125, 6720154, 7196875, 8571625, 8936375, 9118750, 12000275, 12766250, 14393750, 16800385, 17143250, 17872750, 24000550, 31915625, 33600770, 42858125, 44681875, 60001375, 63831250, 84001925, 85716250, 89363750, 120002750, 168003850, 214290625, 223409375, 300006875, 420009625, 428581250, 446818750, 600013750, 840019250, 1500034375, 2100048125, 3000068750, 4200096250, 10500240625, 21000481250]

約数ペア:

[(1, 21000481250), (2, 10500240625), (5, 4200096250), (7, 3000068750), (10, 2100048125), (14, 1500034375), (25, 840019250), (35, 600013750), (47, 446818750), (49, 428581250), (50, 420009625), (70, 300006875), (94, 223409375), (98, 214290625), (125, 168003850), (175, 120002750), (235, 89363750), (245, 85716250), (250, 84001925), (329, 63831250), (350, 60001375), (470, 44681875), (490, 42858125), (625, 33600770), (658, 31915625), (875, 24000550), (1175, 17872750), (1225, 17143250), (1250, 16800385), (1459, 14393750), (1645, 12766250), (1750, 12000275), (2303, 9118750), (2350, 8936375), (2450, 8571625), (2918, 7196875), (3125, 6720154), (3290, 6383125), (4375, 4800110), (4606, 4559375), (5875, 3574550), (6125, 3428650), (6250, 3360077), (7295, 2878750), (8225, 2553250), (8750, 2400055), (10213, 2056250), (11515, 1823750), (11750, 1787275), (12250, 1714325), (14590, 1439375), (16450, 1276625), (20426, 1028125), (21875, 960022), (23030, 911875), (29375, 714910), (30625, 685730), (36475, 575750), (41125, 510650), (43750, 480011), (51065, 411250), (57575, 364750), (58750, 357455), (61250, 342865), (68573, 306250), (71491, 293750), (72950, 287875), (82250, 255325), (102130, 205625), (115150, 182375), (137146, 153125), (142982, 146875)]