20157367520

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{141079}}^1$

素因数の和:141160

約数の個数: 96

約数和(自身を含む): 51195110400

約数和(自身を除く): 31037742880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 47, 76, 80, 94, 95, 152, 160, 188, 190, 235, 304, 376, 380, 470, 608, 752, 760, 893, 940, 1504, 1520, 1786, 1880, 3040, 3572, 3760, 4465, 7144, 7520, 8930, 14288, 17860, 28576, 35720, 71440, 141079, 142880, 282158, 564316, 705395, 1128632, 1410790, 2257264, 2680501, 2821580, 4514528, 5361002, 5643160, 6630713, 10722004, 11286320, 13261426, 13402505, 21444008, 22572640, 26522852, 26805010, 33153565, 42888016, 53045704, 53610020, 66307130, 85776032, 106091408, 107220040, 125983547, 132614260, 212182816, 214440080, 251967094, 265228520, 428880160, 503934188, 530457040, 629917735, 1007868376, 1060914080, 1259835470, 2015736752, 2519670940, 4031473504, 5039341880, 10078683760, 20157367520]

約数ペア:

[(1, 20157367520), (2, 10078683760), (4, 5039341880), (5, 4031473504), (8, 2519670940), (10, 2015736752), (16, 1259835470), (19, 1060914080), (20, 1007868376), (32, 629917735), (38, 530457040), (40, 503934188), (47, 428880160), (76, 265228520), (80, 251967094), (94, 214440080), (95, 212182816), (152, 132614260), (160, 125983547), (188, 107220040), (190, 106091408), (235, 85776032), (304, 66307130), (376, 53610020), (380, 53045704), (470, 42888016), (608, 33153565), (752, 26805010), (760, 26522852), (893, 22572640), (940, 21444008), (1504, 13402505), (1520, 13261426), (1786, 11286320), (1880, 10722004), (3040, 6630713), (3572, 5643160), (3760, 5361002), (4465, 4514528), (7144, 2821580), (7520, 2680501), (8930, 2257264), (14288, 1410790), (17860, 1128632), (28576, 705395), (35720, 564316), (71440, 282158), (141079, 142880)]