19780708080

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{181}}^1\times {\mathrm{9293}}^1$

素因数の和:9504

約数の個数: 240

約数和(自身を含む): 71733471264

約数和(自身を除く): 51952763184

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 98, 105, 112, 120, 140, 147, 168, 181, 196, 210, 240, 245, 280, 294, 336, 362, 392, 420, 490, 543, 560, 588, 724, 735, 784, 840, 905, 980, 1086, 1176, 1267, 1448, 1470, 1680, 1810, 1960, 2172, 2352, 2534, 2715, 2896, 2940, 3620, 3801, 3920, 4344, 5068, 5430, 5880, 6335, 7240, 7602, 8688, 8869, 9293, 10136, 10860, 11760, 12670, 14480, 15204, 17738, 18586, 19005, 20272, 21720, 25340, 26607, 27879, 30408, 35476, 37172, 38010, 43440, 44345, 46465, 50680, 53214, 55758, 60816, 65051, 70952, 74344, 76020, 88690, 92930, 101360, 106428, 111516, 130102, 133035, 139395, 141904, 148688, 152040, 177380, 185860, 195153, 212856, 223032, 260204, 266070, 278790, 304080, 325255, 354760, 371720, 390306, 425712, 446064, 455357, 520408, 532140, 557580, 650510, 709520, 743440, 780612, 910714, 975765, 1040816, 1064280, 1115160, 1301020, 1366071, 1561224, 1682033, 1821428, 1951530, 2128560, 2230320, 2276785, 2602040, 2732142, 3122448, 3364066, 3642856, 3903060, 4553570, 5046099, 5204080, 5464284, 6728132, 6830355, 7285712, 7806120, 8410165, 9107140, 10092198, 10928568, 11774231, 13456264, 13660710, 15612240, 16820330, 18214280, 20184396, 21857136, 23548462, 25230495, 26912528, 27321420, 33640660, 35322693, 36428560, 40368792, 47096924, 50460990, 54642840, 58871155, 67281320, 70645386, 80737584, 82419617, 94193848, 100921980, 109285680, 117742310, 134562640, 141290772, 164839234, 176613465, 188387696, 201843960, 235484620, 247258851, 282581544, 329678468, 353226930, 403687920, 412098085, 470969240, 494517702, 565163088, 659356936, 706453860, 824196170, 941938480, 989035404, 1236294255, 1318713872, 1412907720, 1648392340, 1978070808, 2472588510, 2825815440, 3296784680, 3956141616, 4945177020, 6593569360, 9890354040, 19780708080]

約数ペア:

[(1, 19780708080), (2, 9890354040), (3, 6593569360), (4, 4945177020), (5, 3956141616), (6, 3296784680), (7, 2825815440), (8, 2472588510), (10, 1978070808), (12, 1648392340), (14, 1412907720), (15, 1318713872), (16, 1236294255), (20, 989035404), (21, 941938480), (24, 824196170), (28, 706453860), (30, 659356936), (35, 565163088), (40, 494517702), (42, 470969240), (48, 412098085), (49, 403687920), (56, 353226930), (60, 329678468), (70, 282581544), (80, 247258851), (84, 235484620), (98, 201843960), (105, 188387696), (112, 176613465), (120, 164839234), (140, 141290772), (147, 134562640), (168, 117742310), (181, 109285680), (196, 100921980), (210, 94193848), (240, 82419617), (245, 80737584), (280, 70645386), (294, 67281320), (336, 58871155), (362, 54642840), (392, 50460990), (420, 47096924), (490, 40368792), (543, 36428560), (560, 35322693), (588, 33640660), (724, 27321420), (735, 26912528), (784, 25230495), (840, 23548462), (905, 21857136), (980, 20184396), (1086, 18214280), (1176, 16820330), (1267, 15612240), (1448, 13660710), (1470, 13456264), (1680, 11774231), (1810, 10928568), (1960, 10092198), (2172, 9107140), (2352, 8410165), (2534, 7806120), (2715, 7285712), (2896, 6830355), (2940, 6728132), (3620, 5464284), (3801, 5204080), (3920, 5046099), (4344, 4553570), (5068, 3903060), (5430, 3642856), (5880, 3364066), (6335, 3122448), (7240, 2732142), (7602, 2602040), (8688, 2276785), (8869, 2230320), (9293, 2128560), (10136, 1951530), (10860, 1821428), (11760, 1682033), (12670, 1561224), (14480, 1366071), (15204, 1301020), (17738, 1115160), (18586, 1064280), (19005, 1040816), (20272, 975765), (21720, 910714), (25340, 780612), (26607, 743440), (27879, 709520), (30408, 650510), (35476, 557580), (37172, 532140), (38010, 520408), (43440, 455357), (44345, 446064), (46465, 425712), (50680, 390306), (53214, 371720), (55758, 354760), (60816, 325255), (65051, 304080), (70952, 278790), (74344, 266070), (76020, 260204), (88690, 223032), (92930, 212856), (101360, 195153), (106428, 185860), (111516, 177380), (130102, 152040), (133035, 148688), (139395, 141904)]