217805000

素因数分解:

$2^3\times 5^4\times 7^3\times {\mathrm{127}}^1$

素因数の和:174

約数の個数: 160

約数和(自身を含む): 599808000

約数和(自身を除く): 382003000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 125, 127, 140, 175, 196, 200, 245, 250, 254, 280, 343, 350, 392, 490, 500, 508, 625, 635, 686, 700, 875, 889, 980, 1000, 1016, 1225, 1250, 1270, 1372, 1400, 1715, 1750, 1778, 1960, 2450, 2500, 2540, 2744, 3175, 3430, 3500, 3556, 4375, 4445, 4900, 5000, 5080, 6125, 6223, 6350, 6860, 7000, 7112, 8575, 8750, 8890, 9800, 12250, 12446, 12700, 13720, 15875, 17150, 17500, 17780, 22225, 24500, 24892, 25400, 30625, 31115, 31750, 34300, 35000, 35560, 42875, 43561, 44450, 49000, 49784, 61250, 62230, 63500, 68600, 79375, 85750, 87122, 88900, 111125, 122500, 124460, 127000, 155575, 158750, 171500, 174244, 177800, 214375, 217805, 222250, 245000, 248920, 311150, 317500, 343000, 348488, 428750, 435610, 444500, 555625, 622300, 635000, 777875, 857500, 871220, 889000, 1089025, 1111250, 1244600, 1555750, 1715000, 1742440, 2178050, 2222500, 3111500, 3889375, 4356100, 4445000, 5445125, 6223000, 7778750, 8712200, 10890250, 15557500, 21780500, 27225625, 31115000, 43561000, 54451250, 108902500, 217805000]

約数ペア:

[(1, 217805000), (2, 108902500), (4, 54451250), (5, 43561000), (7, 31115000), (8, 27225625), (10, 21780500), (14, 15557500), (20, 10890250), (25, 8712200), (28, 7778750), (35, 6223000), (40, 5445125), (49, 4445000), (50, 4356100), (56, 3889375), (70, 3111500), (98, 2222500), (100, 2178050), (125, 1742440), (127, 1715000), (140, 1555750), (175, 1244600), (196, 1111250), (200, 1089025), (245, 889000), (250, 871220), (254, 857500), (280, 777875), (343, 635000), (350, 622300), (392, 555625), (490, 444500), (500, 435610), (508, 428750), (625, 348488), (635, 343000), (686, 317500), (700, 311150), (875, 248920), (889, 245000), (980, 222250), (1000, 217805), (1016, 214375), (1225, 177800), (1250, 174244), (1270, 171500), (1372, 158750), (1400, 155575), (1715, 127000), (1750, 124460), (1778, 122500), (1960, 111125), (2450, 88900), (2500, 87122), (2540, 85750), (2744, 79375), (3175, 68600), (3430, 63500), (3500, 62230), (3556, 61250), (4375, 49784), (4445, 49000), (4900, 44450), (5000, 43561), (5080, 42875), (6125, 35560), (6223, 35000), (6350, 34300), (6860, 31750), (7000, 31115), (7112, 30625), (8575, 25400), (8750, 24892), (8890, 24500), (9800, 22225), (12250, 17780), (12446, 17500), (12700, 17150), (13720, 15875)]