20512456944

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{601}}^1\times {\mathrm{647}}^1$

素因数の和:1423

約数の個数: 160

約数和(自身を含む): 61142086656

約数和(自身を除く): 40629629712

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 157, 168, 314, 336, 471, 601, 628, 647, 942, 1099, 1202, 1256, 1294, 1803, 1884, 1941, 2198, 2404, 2512, 2588, 3297, 3606, 3768, 3882, 4207, 4396, 4529, 4808, 5176, 6594, 7212, 7536, 7764, 8414, 8792, 9058, 9616, 10352, 12621, 13188, 13587, 14424, 15528, 16828, 17584, 18116, 25242, 26376, 27174, 28848, 31056, 33656, 36232, 50484, 52752, 54348, 67312, 72464, 94357, 100968, 101579, 108696, 188714, 201936, 203158, 217392, 283071, 304737, 377428, 388847, 406316, 566142, 609474, 660499, 711053, 754856, 777694, 812632, 1132284, 1166541, 1218948, 1320998, 1422106, 1509712, 1555388, 1625264, 1981497, 2133159, 2264568, 2333082, 2437896, 2641996, 2721929, 2844212, 3110776, 3962994, 4266318, 4529136, 4666164, 4875792, 5283992, 5443858, 5688424, 6221552, 7925988, 8165787, 8532636, 9332328, 10567984, 10887716, 11376848, 15851976, 16331574, 17065272, 18664656, 21775432, 31703952, 32663148, 34130544, 43550864, 61048979, 65326296, 122097958, 130652592, 183146937, 244195916, 366293874, 427342853, 488391832, 732587748, 854685706, 976783664, 1282028559, 1465175496, 1709371412, 2564057118, 2930350992, 3418742824, 5128114236, 6837485648, 10256228472, 20512456944]

約数ペア:

[(1, 20512456944), (2, 10256228472), (3, 6837485648), (4, 5128114236), (6, 3418742824), (7, 2930350992), (8, 2564057118), (12, 1709371412), (14, 1465175496), (16, 1282028559), (21, 976783664), (24, 854685706), (28, 732587748), (42, 488391832), (48, 427342853), (56, 366293874), (84, 244195916), (112, 183146937), (157, 130652592), (168, 122097958), (314, 65326296), (336, 61048979), (471, 43550864), (601, 34130544), (628, 32663148), (647, 31703952), (942, 21775432), (1099, 18664656), (1202, 17065272), (1256, 16331574), (1294, 15851976), (1803, 11376848), (1884, 10887716), (1941, 10567984), (2198, 9332328), (2404, 8532636), (2512, 8165787), (2588, 7925988), (3297, 6221552), (3606, 5688424), (3768, 5443858), (3882, 5283992), (4207, 4875792), (4396, 4666164), (4529, 4529136), (4808, 4266318), (5176, 3962994), (6594, 3110776), (7212, 2844212), (7536, 2721929), (7764, 2641996), (8414, 2437896), (8792, 2333082), (9058, 2264568), (9616, 2133159), (10352, 1981497), (12621, 1625264), (13188, 1555388), (13587, 1509712), (14424, 1422106), (15528, 1320998), (16828, 1218948), (17584, 1166541), (18116, 1132284), (25242, 812632), (26376, 777694), (27174, 754856), (28848, 711053), (31056, 660499), (33656, 609474), (36232, 566142), (50484, 406316), (52752, 388847), (54348, 377428), (67312, 304737), (72464, 283071), (94357, 217392), (100968, 203158), (101579, 201936), (108696, 188714)]