81893120

素因数分解:

$2^8\times 5^1\times {\mathrm{137}}^1\times {\mathrm{467}}^1$

素因数の和:625

約数の個数: 72

約数和(自身を含む): 198014544

約数和(自身を除く): 116121424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 137, 160, 256, 274, 320, 467, 548, 640, 685, 934, 1096, 1280, 1370, 1868, 2192, 2335, 2740, 3736, 4384, 4670, 5480, 7472, 8768, 9340, 10960, 14944, 17536, 18680, 21920, 29888, 35072, 37360, 43840, 59776, 63979, 74720, 87680, 119552, 127958, 149440, 175360, 255916, 298880, 319895, 511832, 597760, 639790, 1023664, 1279580, 2047328, 2559160, 4094656, 5118320, 8189312, 10236640, 16378624, 20473280, 40946560, 81893120]

約数ペア:

[(1, 81893120), (2, 40946560), (4, 20473280), (5, 16378624), (8, 10236640), (10, 8189312), (16, 5118320), (20, 4094656), (32, 2559160), (40, 2047328), (64, 1279580), (80, 1023664), (128, 639790), (137, 597760), (160, 511832), (256, 319895), (274, 298880), (320, 255916), (467, 175360), (548, 149440), (640, 127958), (685, 119552), (934, 87680), (1096, 74720), (1280, 63979), (1370, 59776), (1868, 43840), (2192, 37360), (2335, 35072), (2740, 29888), (3736, 21920), (4384, 18680), (4670, 17536), (5480, 14944), (7472, 10960), (8768, 9340)]