21786785280

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72739}}^1$

素因数の和:72781

約数の個数: 240

約数和(自身を含む): 81259017840

約数和(自身を除く): 59472232560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 64, 65, 72, 78, 80, 90, 96, 104, 117, 120, 128, 130, 144, 156, 160, 180, 192, 195, 208, 234, 240, 256, 260, 288, 312, 320, 360, 384, 390, 416, 468, 480, 512, 520, 576, 585, 624, 640, 720, 768, 780, 832, 936, 960, 1040, 1152, 1170, 1248, 1280, 1440, 1536, 1560, 1664, 1872, 1920, 2080, 2304, 2340, 2496, 2560, 2880, 3120, 3328, 3744, 3840, 4160, 4608, 4680, 4992, 5760, 6240, 6656, 7488, 7680, 8320, 9360, 9984, 11520, 12480, 14976, 16640, 18720, 19968, 23040, 24960, 29952, 33280, 37440, 49920, 59904, 72739, 74880, 99840, 145478, 149760, 218217, 290956, 299520, 363695, 436434, 581912, 654651, 727390, 872868, 945607, 1091085, 1163824, 1309302, 1454780, 1745736, 1891214, 2182170, 2327648, 2618604, 2836821, 2909560, 3273255, 3491472, 3782428, 4364340, 4655296, 4728035, 5237208, 5673642, 5819120, 6546510, 6982944, 7564856, 8510463, 8728680, 9310592, 9456070, 10474416, 11347284, 11638240, 13093020, 13965888, 14184105, 15129712, 17020926, 17457360, 18621184, 18912140, 20948832, 22694568, 23276480, 26186040, 27931776, 28368210, 30259424, 34041852, 34914720, 37242368, 37824280, 41897664, 42552315, 45389136, 46552960, 52372080, 55863552, 56736420, 60518848, 68083704, 69829440, 75648560, 83795328, 85104630, 90778272, 93105920, 104744160, 111727104, 113472840, 121037696, 136167408, 139658880, 151297120, 167590656, 170209260, 181556544, 186211840, 209488320, 226945680, 242075392, 272334816, 279317760, 302594240, 335181312, 340418520, 363113088, 418976640, 453891360, 484150784, 544669632, 558635520, 605188480, 680837040, 726226176, 837953280, 907782720, 1089339264, 1210376960, 1361674080, 1452452352, 1675906560, 1815565440, 2178678528, 2420753920, 2723348160, 3631130880, 4357357056, 5446696320, 7262261760, 10893392640, 21786785280]

約数ペア:

[(1, 21786785280), (2, 10893392640), (3, 7262261760), (4, 5446696320), (5, 4357357056), (6, 3631130880), (8, 2723348160), (9, 2420753920), (10, 2178678528), (12, 1815565440), (13, 1675906560), (15, 1452452352), (16, 1361674080), (18, 1210376960), (20, 1089339264), (24, 907782720), (26, 837953280), (30, 726226176), (32, 680837040), (36, 605188480), (39, 558635520), (40, 544669632), (45, 484150784), (48, 453891360), (52, 418976640), (60, 363113088), (64, 340418520), (65, 335181312), (72, 302594240), (78, 279317760), (80, 272334816), (90, 242075392), (96, 226945680), (104, 209488320), (117, 186211840), (120, 181556544), (128, 170209260), (130, 167590656), (144, 151297120), (156, 139658880), (160, 136167408), (180, 121037696), (192, 113472840), (195, 111727104), (208, 104744160), (234, 93105920), (240, 90778272), (256, 85104630), (260, 83795328), (288, 75648560), (312, 69829440), (320, 68083704), (360, 60518848), (384, 56736420), (390, 55863552), (416, 52372080), (468, 46552960), (480, 45389136), (512, 42552315), (520, 41897664), (576, 37824280), (585, 37242368), (624, 34914720), (640, 34041852), (720, 30259424), (768, 28368210), (780, 27931776), (832, 26186040), (936, 23276480), (960, 22694568), (1040, 20948832), (1152, 18912140), (1170, 18621184), (1248, 17457360), (1280, 17020926), (1440, 15129712), (1536, 14184105), (1560, 13965888), (1664, 13093020), (1872, 11638240), (1920, 11347284), (2080, 10474416), (2304, 9456070), (2340, 9310592), (2496, 8728680), (2560, 8510463), (2880, 7564856), (3120, 6982944), (3328, 6546510), (3744, 5819120), (3840, 5673642), (4160, 5237208), (4608, 4728035), (4680, 4655296), (4992, 4364340), (5760, 3782428), (6240, 3491472), (6656, 3273255), (7488, 2909560), (7680, 2836821), (8320, 2618604), (9360, 2327648), (9984, 2182170), (11520, 1891214), (12480, 1745736), (14976, 1454780), (16640, 1309302), (18720, 1163824), (19968, 1091085), (23040, 945607), (24960, 872868), (29952, 727390), (33280, 654651), (37440, 581912), (49920, 436434), (59904, 363695), (72739, 299520), (74880, 290956), (99840, 218217), (145478, 149760)]