291268978

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1993}}^1$

素因数の和:2099

約数の個数: 64

約数和(自身を含む): 594945792

約数和(自身を除く): 303676814

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 73, 77, 91, 143, 146, 154, 182, 286, 511, 803, 949, 1001, 1022, 1606, 1898, 1993, 2002, 3986, 5621, 6643, 10439, 11242, 13286, 13951, 20878, 21923, 25909, 27902, 43846, 51818, 73073, 145489, 146146, 153461, 181363, 284999, 290978, 306922, 362726, 569998, 1018423, 1600379, 1891357, 1994993, 2036846, 3200758, 3782714, 3989986, 11202653, 13239499, 20804927, 22405306, 26478998, 41609854, 145634489, 291268978]

約数ペア:

[(1, 291268978), (2, 145634489), (7, 41609854), (11, 26478998), (13, 22405306), (14, 20804927), (22, 13239499), (26, 11202653), (73, 3989986), (77, 3782714), (91, 3200758), (143, 2036846), (146, 1994993), (154, 1891357), (182, 1600379), (286, 1018423), (511, 569998), (803, 362726), (949, 306922), (1001, 290978), (1022, 284999), (1606, 181363), (1898, 153461), (1993, 146146), (2002, 145489), (3986, 73073), (5621, 51818), (6643, 43846), (10439, 27902), (11242, 25909), (13286, 21923), (13951, 20878)]