21287465760

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{55229}}^1$

素因数の和:55331

約数の個数: 192

約数和(自身を含む): 74154890880

約数和(自身を除く): 52867425120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 66, 73, 80, 88, 96, 110, 120, 132, 146, 160, 165, 176, 219, 220, 240, 264, 292, 330, 352, 365, 438, 440, 480, 528, 584, 660, 730, 803, 876, 880, 1056, 1095, 1168, 1320, 1460, 1606, 1752, 1760, 2190, 2336, 2409, 2640, 2920, 3212, 3504, 4015, 4380, 4818, 5280, 5840, 6424, 7008, 8030, 8760, 9636, 11680, 12045, 12848, 16060, 17520, 19272, 24090, 25696, 32120, 35040, 38544, 48180, 55229, 64240, 77088, 96360, 110458, 128480, 165687, 192720, 220916, 276145, 331374, 385440, 441832, 552290, 607519, 662748, 828435, 883664, 1104580, 1215038, 1325496, 1656870, 1767328, 1822557, 2209160, 2430076, 2650992, 3037595, 3313740, 3645114, 4031717, 4418320, 4860152, 5301984, 6075190, 6627480, 7290228, 8063434, 8836640, 9112785, 9720304, 12095151, 12150380, 13254960, 14580456, 16126868, 18225570, 19440608, 20158585, 24190302, 24300760, 26509920, 29160912, 32253736, 36451140, 40317170, 44348887, 48380604, 48601520, 58321824, 60475755, 64507472, 72902280, 80634340, 88697774, 96761208, 97203040, 120951510, 129014944, 133046661, 145804560, 161268680, 177395548, 193522416, 221744435, 241903020, 266093322, 291609120, 322537360, 354791096, 387044832, 443488870, 483806040, 532186644, 645074720, 665233305, 709582192, 886977740, 967612080, 1064373288, 1330466610, 1419164384, 1773955480, 1935224160, 2128746576, 2660933220, 3547910960, 4257493152, 5321866440, 7095821920, 10643732880, 21287465760]

約数ペア:

[(1, 21287465760), (2, 10643732880), (3, 7095821920), (4, 5321866440), (5, 4257493152), (6, 3547910960), (8, 2660933220), (10, 2128746576), (11, 1935224160), (12, 1773955480), (15, 1419164384), (16, 1330466610), (20, 1064373288), (22, 967612080), (24, 886977740), (30, 709582192), (32, 665233305), (33, 645074720), (40, 532186644), (44, 483806040), (48, 443488870), (55, 387044832), (60, 354791096), (66, 322537360), (73, 291609120), (80, 266093322), (88, 241903020), (96, 221744435), (110, 193522416), (120, 177395548), (132, 161268680), (146, 145804560), (160, 133046661), (165, 129014944), (176, 120951510), (219, 97203040), (220, 96761208), (240, 88697774), (264, 80634340), (292, 72902280), (330, 64507472), (352, 60475755), (365, 58321824), (438, 48601520), (440, 48380604), (480, 44348887), (528, 40317170), (584, 36451140), (660, 32253736), (730, 29160912), (803, 26509920), (876, 24300760), (880, 24190302), (1056, 20158585), (1095, 19440608), (1168, 18225570), (1320, 16126868), (1460, 14580456), (1606, 13254960), (1752, 12150380), (1760, 12095151), (2190, 9720304), (2336, 9112785), (2409, 8836640), (2640, 8063434), (2920, 7290228), (3212, 6627480), (3504, 6075190), (4015, 5301984), (4380, 4860152), (4818, 4418320), (5280, 4031717), (5840, 3645114), (6424, 3313740), (7008, 3037595), (8030, 2650992), (8760, 2430076), (9636, 2209160), (11680, 1822557), (12045, 1767328), (12848, 1656870), (16060, 1325496), (17520, 1215038), (19272, 1104580), (24090, 883664), (25696, 828435), (32120, 662748), (35040, 607519), (38544, 552290), (48180, 441832), (55229, 385440), (64240, 331374), (77088, 276145), (96360, 220916), (110458, 192720), (128480, 165687)]