20386718128

素因数分解:

$2^4\times 7^4\times {\mathrm{601}}^1\times {\mathrm{883}}^1$

素因数の和:1520

約数の個数: 100

約数和(自身を含む): 46208679608

約数和(自身を除く): 25821961480

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 343, 392, 601, 686, 784, 883, 1202, 1372, 1766, 2401, 2404, 2744, 3532, 4207, 4802, 4808, 5488, 6181, 7064, 8414, 9604, 9616, 12362, 14128, 16828, 19208, 24724, 29449, 33656, 38416, 43267, 49448, 58898, 67312, 86534, 98896, 117796, 173068, 206143, 235592, 302869, 346136, 412286, 471184, 530683, 605738, 692272, 824572, 1061366, 1211476, 1443001, 1649144, 2120083, 2122732, 2422952, 2886002, 3298288, 3714781, 4240166, 4245464, 4845904, 5772004, 7429562, 8480332, 8490928, 11544008, 14859124, 16960664, 23088016, 26003467, 29718248, 33921328, 52006934, 59436496, 104013868, 182024269, 208027736, 364048538, 416055472, 728097076, 1274169883, 1456194152, 2548339766, 2912388304, 5096679532, 10193359064, 20386718128]

約数ペア:

[(1, 20386718128), (2, 10193359064), (4, 5096679532), (7, 2912388304), (8, 2548339766), (14, 1456194152), (16, 1274169883), (28, 728097076), (49, 416055472), (56, 364048538), (98, 208027736), (112, 182024269), (196, 104013868), (343, 59436496), (392, 52006934), (601, 33921328), (686, 29718248), (784, 26003467), (883, 23088016), (1202, 16960664), (1372, 14859124), (1766, 11544008), (2401, 8490928), (2404, 8480332), (2744, 7429562), (3532, 5772004), (4207, 4845904), (4802, 4245464), (4808, 4240166), (5488, 3714781), (6181, 3298288), (7064, 2886002), (8414, 2422952), (9604, 2122732), (9616, 2120083), (12362, 1649144), (14128, 1443001), (16828, 1211476), (19208, 1061366), (24724, 824572), (29449, 692272), (33656, 605738), (38416, 530683), (43267, 471184), (49448, 412286), (58898, 346136), (67312, 302869), (86534, 235592), (98896, 206143), (117796, 173068)]