20110475

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{337}}^1$

素因数の和:396

約数の個数: 48

約数和(自身を含む): 32188416

約数和(自身を除く): 12077941

約数列:

[1, 5, 7, 11, 25, 31, 35, 55, 77, 155, 175, 217, 275, 337, 341, 385, 775, 1085, 1685, 1705, 1925, 2359, 2387, 3707, 5425, 8425, 8525, 10447, 11795, 11935, 18535, 25949, 52235, 58975, 59675, 73129, 92675, 114917, 129745, 261175, 365645, 574585, 648725, 804419, 1828225, 2872925, 4022095, 20110475]

約数ペア:

[(1, 20110475), (5, 4022095), (7, 2872925), (11, 1828225), (25, 804419), (31, 648725), (35, 574585), (55, 365645), (77, 261175), (155, 129745), (175, 114917), (217, 92675), (275, 73129), (337, 59675), (341, 58975), (385, 52235), (775, 25949), (1085, 18535), (1685, 11935), (1705, 11795), (1925, 10447), (2359, 8525), (2387, 8425), (3707, 5425)]