2019198740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{691}}^1\times {\mathrm{11239}}^1$

素因数の和:11952

約数の個数: 48

約数和(自身を含む): 4573511040

約数和(自身を除く): 2554312300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 691, 1382, 2764, 3455, 6910, 8983, 11239, 13820, 17966, 22478, 35932, 44915, 44956, 56195, 89830, 112390, 146107, 179660, 224780, 292214, 584428, 730535, 1461070, 2922140, 7766149, 15532298, 31064596, 38830745, 77661490, 100959937, 155322980, 201919874, 403839748, 504799685, 1009599370, 2019198740]

約数ペア:

[(1, 2019198740), (2, 1009599370), (4, 504799685), (5, 403839748), (10, 201919874), (13, 155322980), (20, 100959937), (26, 77661490), (52, 38830745), (65, 31064596), (130, 15532298), (260, 7766149), (691, 2922140), (1382, 1461070), (2764, 730535), (3455, 584428), (6910, 292214), (8983, 224780), (11239, 179660), (13820, 146107), (17966, 112390), (22478, 89830), (35932, 56195), (44915, 44956)]