19509490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1949}}^1$

素因数の和:1987

約数の個数: 64

約数和(自身を含む): 47174400

約数和(自身を除く): 27664910

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 26, 35, 55, 65, 70, 77, 91, 110, 130, 143, 154, 182, 286, 385, 455, 715, 770, 910, 1001, 1430, 1949, 2002, 3898, 5005, 9745, 10010, 13643, 19490, 21439, 25337, 27286, 42878, 50674, 68215, 107195, 126685, 136430, 150073, 177359, 214390, 253370, 278707, 300146, 354718, 557414, 750365, 886795, 1393535, 1500730, 1773590, 1950949, 2787070, 3901898, 9754745, 19509490]

約数ペア:

[(1, 19509490), (2, 9754745), (5, 3901898), (7, 2787070), (10, 1950949), (11, 1773590), (13, 1500730), (14, 1393535), (22, 886795), (26, 750365), (35, 557414), (55, 354718), (65, 300146), (70, 278707), (77, 253370), (91, 214390), (110, 177359), (130, 150073), (143, 136430), (154, 126685), (182, 107195), (286, 68215), (385, 50674), (455, 42878), (715, 27286), (770, 25337), (910, 21439), (1001, 19490), (1430, 13643), (1949, 10010), (2002, 9745), (3898, 5005)]