20402459280

素因数分解:

$2^4\times 3^3\times 5^1\times 7^2\times {\mathrm{192767}}^1$

素因数の和:192803

約数の個数: 240

約数和(自身を含む): 81749053440

約数和(自身を除く): 61346594160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 49, 54, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 108, 112, 120, 126, 135, 140, 144, 147, 168, 180, 189, 196, 210, 216, 240, 245, 252, 270, 280, 294, 315, 336, 360, 378, 392, 420, 432, 441, 490, 504, 540, 560, 588, 630, 720, 735, 756, 784, 840, 882, 945, 980, 1008, 1080, 1176, 1260, 1323, 1470, 1512, 1680, 1764, 1890, 1960, 2160, 2205, 2352, 2520, 2646, 2940, 3024, 3528, 3780, 3920, 4410, 5040, 5292, 5880, 6615, 7056, 7560, 8820, 10584, 11760, 13230, 15120, 17640, 21168, 26460, 35280, 52920, 105840, 192767, 385534, 578301, 771068, 963835, 1156602, 1349369, 1542136, 1734903, 1927670, 2313204, 2698738, 2891505, 3084272, 3469806, 3855340, 4048107, 4626408, 5204709, 5397476, 5783010, 6746845, 6939612, 7710680, 8096214, 8674515, 9252816, 9445583, 10409418, 10794952, 11566020, 12144321, 13493690, 13879224, 15421360, 16192428, 17349030, 18891166, 20240535, 20818836, 21589904, 23132040, 24288642, 26023545, 26987380, 27758448, 28336749, 32384856, 34698060, 36432963, 37782332, 40481070, 41637672, 46264080, 47227915, 48577284, 52047090, 53974760, 56673498, 60721605, 64769712, 69396120, 72865926, 75564664, 80962140, 83275344, 85010247, 94455830, 97154568, 104094180, 107949520, 113346996, 121443210, 138792240, 141683745, 145731852, 151129328, 161924280, 170020494, 182164815, 188911660, 194309136, 208188360, 226693992, 242886420, 255030741, 283367490, 291463704, 323848560, 340040988, 364329630, 377823320, 416376720, 425051235, 453387984, 485772840, 510061482, 566734980, 582927408, 680081976, 728659260, 755646640, 850102470, 971545680, 1020122964, 1133469960, 1275153705, 1360163952, 1457318520, 1700204940, 2040245928, 2266939920, 2550307410, 2914637040, 3400409880, 4080491856, 5100614820, 6800819760, 10201229640, 20402459280]

約数ペア:

[(1, 20402459280), (2, 10201229640), (3, 6800819760), (4, 5100614820), (5, 4080491856), (6, 3400409880), (7, 2914637040), (8, 2550307410), (9, 2266939920), (10, 2040245928), (12, 1700204940), (14, 1457318520), (15, 1360163952), (16, 1275153705), (18, 1133469960), (20, 1020122964), (21, 971545680), (24, 850102470), (27, 755646640), (28, 728659260), (30, 680081976), (35, 582927408), (36, 566734980), (40, 510061482), (42, 485772840), (45, 453387984), (48, 425051235), (49, 416376720), (54, 377823320), (56, 364329630), (60, 340040988), (63, 323848560), (70, 291463704), (72, 283367490), (80, 255030741), (84, 242886420), (90, 226693992), (98, 208188360), (105, 194309136), (108, 188911660), (112, 182164815), (120, 170020494), (126, 161924280), (135, 151129328), (140, 145731852), (144, 141683745), (147, 138792240), (168, 121443210), (180, 113346996), (189, 107949520), (196, 104094180), (210, 97154568), (216, 94455830), (240, 85010247), (245, 83275344), (252, 80962140), (270, 75564664), (280, 72865926), (294, 69396120), (315, 64769712), (336, 60721605), (360, 56673498), (378, 53974760), (392, 52047090), (420, 48577284), (432, 47227915), (441, 46264080), (490, 41637672), (504, 40481070), (540, 37782332), (560, 36432963), (588, 34698060), (630, 32384856), (720, 28336749), (735, 27758448), (756, 26987380), (784, 26023545), (840, 24288642), (882, 23132040), (945, 21589904), (980, 20818836), (1008, 20240535), (1080, 18891166), (1176, 17349030), (1260, 16192428), (1323, 15421360), (1470, 13879224), (1512, 13493690), (1680, 12144321), (1764, 11566020), (1890, 10794952), (1960, 10409418), (2160, 9445583), (2205, 9252816), (2352, 8674515), (2520, 8096214), (2646, 7710680), (2940, 6939612), (3024, 6746845), (3528, 5783010), (3780, 5397476), (3920, 5204709), (4410, 4626408), (5040, 4048107), (5292, 3855340), (5880, 3469806), (6615, 3084272), (7056, 2891505), (7560, 2698738), (8820, 2313204), (10584, 1927670), (11760, 1734903), (13230, 1542136), (15120, 1349369), (17640, 1156602), (21168, 963835), (26460, 771068), (35280, 578301), (52920, 385534), (105840, 192767)]