20090149040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{666119}}^1$

素因数の和:666174

約数の個数: 80

約数和(自身を含む): 52037294400

約数和(自身を除く): 31947145360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 29, 40, 52, 58, 65, 80, 104, 116, 130, 145, 208, 232, 260, 290, 377, 464, 520, 580, 754, 1040, 1160, 1508, 1885, 2320, 3016, 3770, 6032, 7540, 15080, 30160, 666119, 1332238, 2664476, 3330595, 5328952, 6661190, 8659547, 10657904, 13322380, 17319094, 19317451, 26644760, 34638188, 38634902, 43297735, 53289520, 69276376, 77269804, 86595470, 96587255, 138552752, 154539608, 173190940, 193174510, 251126863, 309079216, 346381880, 386349020, 502253726, 692763760, 772698040, 1004507452, 1255634315, 1545396080, 2009014904, 2511268630, 4018029808, 5022537260, 10045074520, 20090149040]

約数ペア:

[(1, 20090149040), (2, 10045074520), (4, 5022537260), (5, 4018029808), (8, 2511268630), (10, 2009014904), (13, 1545396080), (16, 1255634315), (20, 1004507452), (26, 772698040), (29, 692763760), (40, 502253726), (52, 386349020), (58, 346381880), (65, 309079216), (80, 251126863), (104, 193174510), (116, 173190940), (130, 154539608), (145, 138552752), (208, 96587255), (232, 86595470), (260, 77269804), (290, 69276376), (377, 53289520), (464, 43297735), (520, 38634902), (580, 34638188), (754, 26644760), (1040, 19317451), (1160, 17319094), (1508, 13322380), (1885, 10657904), (2320, 8659547), (3016, 6661190), (3770, 5328952), (6032, 3330595), (7540, 2664476), (15080, 1332238), (30160, 666119)]