1566784720

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{211}}^1\times {\mathrm{919}}^1$

素因数の和:1244

約数の個数: 80

約数和(自身を含む): 3700298880

約数和(自身を除く): 2133514160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 211, 404, 422, 505, 808, 844, 919, 1010, 1055, 1616, 1688, 1838, 2020, 2110, 3376, 3676, 4040, 4220, 4595, 7352, 8080, 8440, 9190, 14704, 16880, 18380, 21311, 36760, 42622, 73520, 85244, 92819, 106555, 170488, 185638, 193909, 213110, 340976, 371276, 387818, 426220, 464095, 742552, 775636, 852440, 928190, 969545, 1485104, 1551272, 1704880, 1856380, 1939090, 3102544, 3712760, 3878180, 7425520, 7756360, 15512720, 19584809, 39169618, 78339236, 97924045, 156678472, 195848090, 313356944, 391696180, 783392360, 1566784720]

約数ペア:

[(1, 1566784720), (2, 783392360), (4, 391696180), (5, 313356944), (8, 195848090), (10, 156678472), (16, 97924045), (20, 78339236), (40, 39169618), (80, 19584809), (101, 15512720), (202, 7756360), (211, 7425520), (404, 3878180), (422, 3712760), (505, 3102544), (808, 1939090), (844, 1856380), (919, 1704880), (1010, 1551272), (1055, 1485104), (1616, 969545), (1688, 928190), (1838, 852440), (2020, 775636), (2110, 742552), (3376, 464095), (3676, 426220), (4040, 387818), (4220, 371276), (4595, 340976), (7352, 213110), (8080, 193909), (8440, 185638), (9190, 170488), (14704, 106555), (16880, 92819), (18380, 85244), (21311, 73520), (36760, 42622)]