20407841280

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{20599}}^1$

素因数の和:20671

約数の個数: 240

約数和(自身を含む): 72325281600

約数和(自身を除く): 51917440320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 43, 45, 48, 60, 64, 72, 80, 86, 90, 96, 120, 128, 129, 144, 160, 172, 180, 192, 215, 240, 256, 258, 288, 320, 344, 360, 384, 387, 430, 480, 512, 516, 576, 640, 645, 688, 720, 768, 774, 860, 960, 1032, 1152, 1280, 1290, 1376, 1440, 1536, 1548, 1720, 1920, 1935, 2064, 2304, 2560, 2580, 2752, 2880, 3096, 3440, 3840, 3870, 4128, 4608, 5160, 5504, 5760, 6192, 6880, 7680, 7740, 8256, 10320, 11008, 11520, 12384, 13760, 15480, 16512, 20599, 20640, 22016, 23040, 24768, 27520, 30960, 33024, 41198, 41280, 49536, 55040, 61797, 61920, 66048, 82396, 82560, 99072, 102995, 110080, 123594, 123840, 164792, 165120, 185391, 198144, 205990, 247188, 247680, 308985, 329584, 330240, 370782, 411980, 494376, 495360, 617970, 659168, 741564, 823960, 885757, 926955, 988752, 990720, 1235940, 1318336, 1483128, 1647920, 1771514, 1853910, 1977504, 2471880, 2636672, 2657271, 2966256, 3295840, 3543028, 3707820, 3955008, 4428785, 4943760, 5273344, 5314542, 5932512, 6591680, 7086056, 7415640, 7910016, 7971813, 8857570, 9887520, 10546688, 10629084, 11865024, 13183360, 13286355, 14172112, 14831280, 15820032, 15943626, 17715140, 19775040, 21258168, 23730048, 26366720, 26572710, 28344224, 29662560, 31640064, 31887252, 35430280, 39550080, 39859065, 42516336, 47460096, 52733440, 53145420, 56688448, 59325120, 63774504, 70860560, 79100160, 79718130, 85032672, 94920192, 106290840, 113376896, 118650240, 127549008, 141721120, 158200320, 159436260, 170065344, 212581680, 226753792, 237300480, 255098016, 283442240, 318872520, 340130688, 425163360, 453507584, 474600960, 510196032, 566884480, 637745040, 680261376, 850326720, 1020392064, 1133768960, 1275490080, 1360522752, 1700653440, 2040784128, 2267537920, 2550980160, 3401306880, 4081568256, 5101960320, 6802613760, 10203920640, 20407841280]

約数ペア:

[(1, 20407841280), (2, 10203920640), (3, 6802613760), (4, 5101960320), (5, 4081568256), (6, 3401306880), (8, 2550980160), (9, 2267537920), (10, 2040784128), (12, 1700653440), (15, 1360522752), (16, 1275490080), (18, 1133768960), (20, 1020392064), (24, 850326720), (30, 680261376), (32, 637745040), (36, 566884480), (40, 510196032), (43, 474600960), (45, 453507584), (48, 425163360), (60, 340130688), (64, 318872520), (72, 283442240), (80, 255098016), (86, 237300480), (90, 226753792), (96, 212581680), (120, 170065344), (128, 159436260), (129, 158200320), (144, 141721120), (160, 127549008), (172, 118650240), (180, 113376896), (192, 106290840), (215, 94920192), (240, 85032672), (256, 79718130), (258, 79100160), (288, 70860560), (320, 63774504), (344, 59325120), (360, 56688448), (384, 53145420), (387, 52733440), (430, 47460096), (480, 42516336), (512, 39859065), (516, 39550080), (576, 35430280), (640, 31887252), (645, 31640064), (688, 29662560), (720, 28344224), (768, 26572710), (774, 26366720), (860, 23730048), (960, 21258168), (1032, 19775040), (1152, 17715140), (1280, 15943626), (1290, 15820032), (1376, 14831280), (1440, 14172112), (1536, 13286355), (1548, 13183360), (1720, 11865024), (1920, 10629084), (1935, 10546688), (2064, 9887520), (2304, 8857570), (2560, 7971813), (2580, 7910016), (2752, 7415640), (2880, 7086056), (3096, 6591680), (3440, 5932512), (3840, 5314542), (3870, 5273344), (4128, 4943760), (4608, 4428785), (5160, 3955008), (5504, 3707820), (5760, 3543028), (6192, 3295840), (6880, 2966256), (7680, 2657271), (7740, 2636672), (8256, 2471880), (10320, 1977504), (11008, 1853910), (11520, 1771514), (12384, 1647920), (13760, 1483128), (15480, 1318336), (16512, 1235940), (20599, 990720), (20640, 988752), (22016, 926955), (23040, 885757), (24768, 823960), (27520, 741564), (30960, 659168), (33024, 617970), (41198, 495360), (41280, 494376), (49536, 411980), (55040, 370782), (61797, 330240), (61920, 329584), (66048, 308985), (82396, 247680), (82560, 247188), (99072, 205990), (102995, 198144), (110080, 185391), (123594, 165120), (123840, 164792)]