28294000

素因数分解:

$2^4\times 5^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:120

約数の個数: 160

約数和(自身を含む): 81709056

約数和(自身を除く): 53415056

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 43, 47, 50, 56, 70, 80, 86, 94, 100, 112, 125, 140, 172, 175, 188, 200, 215, 235, 250, 280, 301, 329, 344, 350, 376, 400, 430, 470, 500, 560, 602, 658, 688, 700, 752, 860, 875, 940, 1000, 1075, 1175, 1204, 1316, 1400, 1505, 1645, 1720, 1750, 1880, 2000, 2021, 2150, 2350, 2408, 2632, 2800, 3010, 3290, 3440, 3500, 3760, 4042, 4300, 4700, 4816, 5264, 5375, 5875, 6020, 6580, 7000, 7525, 8084, 8225, 8600, 9400, 10105, 10750, 11750, 12040, 13160, 14000, 14147, 15050, 16168, 16450, 17200, 18800, 20210, 21500, 23500, 24080, 26320, 28294, 30100, 32336, 32900, 37625, 40420, 41125, 43000, 47000, 50525, 56588, 60200, 65800, 70735, 75250, 80840, 82250, 86000, 94000, 101050, 113176, 120400, 131600, 141470, 150500, 161680, 164500, 202100, 226352, 252625, 282940, 301000, 329000, 353675, 404200, 505250, 565880, 602000, 658000, 707350, 808400, 1010500, 1131760, 1414700, 1768375, 2021000, 2829400, 3536750, 4042000, 5658800, 7073500, 14147000, 28294000]

約数ペア:

[(1, 28294000), (2, 14147000), (4, 7073500), (5, 5658800), (7, 4042000), (8, 3536750), (10, 2829400), (14, 2021000), (16, 1768375), (20, 1414700), (25, 1131760), (28, 1010500), (35, 808400), (40, 707350), (43, 658000), (47, 602000), (50, 565880), (56, 505250), (70, 404200), (80, 353675), (86, 329000), (94, 301000), (100, 282940), (112, 252625), (125, 226352), (140, 202100), (172, 164500), (175, 161680), (188, 150500), (200, 141470), (215, 131600), (235, 120400), (250, 113176), (280, 101050), (301, 94000), (329, 86000), (344, 82250), (350, 80840), (376, 75250), (400, 70735), (430, 65800), (470, 60200), (500, 56588), (560, 50525), (602, 47000), (658, 43000), (688, 41125), (700, 40420), (752, 37625), (860, 32900), (875, 32336), (940, 30100), (1000, 28294), (1075, 26320), (1175, 24080), (1204, 23500), (1316, 21500), (1400, 20210), (1505, 18800), (1645, 17200), (1720, 16450), (1750, 16168), (1880, 15050), (2000, 14147), (2021, 14000), (2150, 13160), (2350, 12040), (2408, 11750), (2632, 10750), (2800, 10105), (3010, 9400), (3290, 8600), (3440, 8225), (3500, 8084), (3760, 7525), (4042, 7000), (4300, 6580), (4700, 6020), (4816, 5875), (5264, 5375)]