20218561580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{28901}}^1$

素因数の和:29199

約数の個数: 96

約数和(自身を含む): 51274460160

約数和(自身を除く): 31055898580

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 263, 266, 380, 526, 532, 665, 1052, 1315, 1330, 1841, 2630, 2660, 3682, 4997, 5260, 7364, 9205, 9994, 18410, 19988, 24985, 28901, 34979, 36820, 49970, 57802, 69958, 99940, 115604, 139916, 144505, 174895, 202307, 289010, 349790, 404614, 549119, 578020, 699580, 809228, 1011535, 1098238, 2023070, 2196476, 2745595, 3843833, 4046140, 5491190, 7600963, 7687666, 10982380, 15201926, 15375332, 19219165, 30403852, 38004815, 38438330, 53206741, 76009630, 76876660, 106413482, 144418297, 152019260, 212826964, 266033705, 288836594, 532067410, 577673188, 722091485, 1010928079, 1064134820, 1444182970, 2021856158, 2888365940, 4043712316, 5054640395, 10109280790, 20218561580]

約数ペア:

[(1, 20218561580), (2, 10109280790), (4, 5054640395), (5, 4043712316), (7, 2888365940), (10, 2021856158), (14, 1444182970), (19, 1064134820), (20, 1010928079), (28, 722091485), (35, 577673188), (38, 532067410), (70, 288836594), (76, 266033705), (95, 212826964), (133, 152019260), (140, 144418297), (190, 106413482), (263, 76876660), (266, 76009630), (380, 53206741), (526, 38438330), (532, 38004815), (665, 30403852), (1052, 19219165), (1315, 15375332), (1330, 15201926), (1841, 10982380), (2630, 7687666), (2660, 7600963), (3682, 5491190), (4997, 4046140), (5260, 3843833), (7364, 2745595), (9205, 2196476), (9994, 2023070), (18410, 1098238), (19988, 1011535), (24985, 809228), (28901, 699580), (34979, 578020), (36820, 549119), (49970, 404614), (57802, 349790), (69958, 289010), (99940, 202307), (115604, 174895), (139916, 144505)]