19620128

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{401}}^1$

素因数の和:561

約数の個数: 48

約数和(自身を含む): 42547680

約数和(自身を除く): 22927552

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 139, 176, 278, 352, 401, 556, 802, 1112, 1529, 1604, 2224, 3058, 3208, 4411, 4448, 6116, 6416, 8822, 12232, 12832, 17644, 24464, 35288, 48928, 55739, 70576, 111478, 141152, 222956, 445912, 613129, 891824, 1226258, 1783648, 2452516, 4905032, 9810064, 19620128]

約数ペア:

[(1, 19620128), (2, 9810064), (4, 4905032), (8, 2452516), (11, 1783648), (16, 1226258), (22, 891824), (32, 613129), (44, 445912), (88, 222956), (139, 141152), (176, 111478), (278, 70576), (352, 55739), (401, 48928), (556, 35288), (802, 24464), (1112, 17644), (1529, 12832), (1604, 12232), (2224, 8822), (3058, 6416), (3208, 6116), (4411, 4448)]