2016807880

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{557}}^1\times {\mathrm{691}}^1$

素因数の和:1390

約数の個数: 64

約数和(自身を含む): 4587295680

約数和(自身を除く): 2570487800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 557, 655, 691, 1048, 1114, 1310, 1382, 2228, 2620, 2764, 2785, 3455, 4456, 5240, 5528, 5570, 6910, 11140, 13820, 22280, 27640, 72967, 90521, 145934, 181042, 291868, 362084, 364835, 384887, 452605, 583736, 724168, 729670, 769774, 905210, 1459340, 1539548, 1810420, 1924435, 2918680, 3079096, 3620840, 3848870, 7697740, 15395480, 50420197, 100840394, 201680788, 252100985, 403361576, 504201970, 1008403940, 2016807880]

約数ペア:

[(1, 2016807880), (2, 1008403940), (4, 504201970), (5, 403361576), (8, 252100985), (10, 201680788), (20, 100840394), (40, 50420197), (131, 15395480), (262, 7697740), (524, 3848870), (557, 3620840), (655, 3079096), (691, 2918680), (1048, 1924435), (1114, 1810420), (1310, 1539548), (1382, 1459340), (2228, 905210), (2620, 769774), (2764, 729670), (2785, 724168), (3455, 583736), (4456, 452605), (5240, 384887), (5528, 364835), (5570, 362084), (6910, 291868), (11140, 181042), (13820, 145934), (22280, 90521), (27640, 72967)]