2013198160

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1\times {\mathrm{919}}^1$

素因数の和:1268

約数の個数: 80

約数和(自身を含む): 4743446400

約数和(自身を除く): 2730248240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 197, 278, 394, 556, 695, 788, 919, 985, 1112, 1390, 1576, 1838, 1970, 2224, 2780, 3152, 3676, 3940, 4595, 5560, 7352, 7880, 9190, 11120, 14704, 15760, 18380, 27383, 36760, 54766, 73520, 109532, 127741, 136915, 181043, 219064, 255482, 273830, 362086, 438128, 510964, 547660, 638705, 724172, 905215, 1021928, 1095320, 1277410, 1448344, 1810430, 2043856, 2190640, 2554820, 2896688, 3620860, 5109640, 7241720, 10219280, 14483440, 25164977, 50329954, 100659908, 125824885, 201319816, 251649770, 402639632, 503299540, 1006599080, 2013198160]

約数ペア:

[(1, 2013198160), (2, 1006599080), (4, 503299540), (5, 402639632), (8, 251649770), (10, 201319816), (16, 125824885), (20, 100659908), (40, 50329954), (80, 25164977), (139, 14483440), (197, 10219280), (278, 7241720), (394, 5109640), (556, 3620860), (695, 2896688), (788, 2554820), (919, 2190640), (985, 2043856), (1112, 1810430), (1390, 1448344), (1576, 1277410), (1838, 1095320), (1970, 1021928), (2224, 905215), (2780, 724172), (3152, 638705), (3676, 547660), (3940, 510964), (4595, 438128), (5560, 362086), (7352, 273830), (7880, 255482), (9190, 219064), (11120, 181043), (14704, 136915), (15760, 127741), (18380, 109532), (27383, 73520), (36760, 54766)]