20793065728

素因数分解:

$2^8\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{39679}}^1$

素因数の和:39807

約数の個数: 72

約数和(自身を含む): 43797196800

約数和(自身を除く): 23004131072

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 89, 92, 128, 178, 184, 256, 356, 368, 712, 736, 1424, 1472, 2047, 2848, 2944, 4094, 5696, 5888, 8188, 11392, 16376, 22784, 32752, 39679, 65504, 79358, 131008, 158716, 262016, 317432, 524032, 634864, 912617, 1269728, 1825234, 2539456, 3531431, 3650468, 5078912, 7062862, 7300936, 10157824, 14125724, 14601872, 28251448, 29203744, 56502896, 58407488, 81222913, 113005792, 116814976, 162445826, 226011584, 233629952, 324891652, 452023168, 649783304, 904046336, 1299566608, 2599133216, 5198266432, 10396532864, 20793065728]

約数ペア:

[(1, 20793065728), (2, 10396532864), (4, 5198266432), (8, 2599133216), (16, 1299566608), (23, 904046336), (32, 649783304), (46, 452023168), (64, 324891652), (89, 233629952), (92, 226011584), (128, 162445826), (178, 116814976), (184, 113005792), (256, 81222913), (356, 58407488), (368, 56502896), (712, 29203744), (736, 28251448), (1424, 14601872), (1472, 14125724), (2047, 10157824), (2848, 7300936), (2944, 7062862), (4094, 5078912), (5696, 3650468), (5888, 3531431), (8188, 2539456), (11392, 1825234), (16376, 1269728), (22784, 912617), (32752, 634864), (39679, 524032), (65504, 317432), (79358, 262016), (131008, 158716)]