205441775

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:225

約数の個数: 96

約数和(自身を含む): 344977920

約数和(自身を除く): 139536145

約数列:

[1, 5, 7, 11, 19, 25, 35, 41, 55, 77, 95, 133, 137, 175, 205, 209, 275, 287, 385, 451, 475, 665, 685, 779, 959, 1025, 1045, 1435, 1463, 1507, 1925, 2255, 2603, 3157, 3325, 3425, 3895, 4795, 5225, 5453, 5617, 7175, 7315, 7535, 8569, 10549, 11275, 13015, 15785, 18221, 19475, 23975, 27265, 28085, 28633, 36575, 37675, 39319, 42845, 52745, 59983, 61787, 65075, 78925, 91105, 106723, 136325, 140425, 143165, 196595, 200431, 214225, 263725, 299915, 308935, 432509, 455525, 533615, 715825, 747061, 982975, 1002155, 1173953, 1499575, 1544675, 2162545, 2668075, 3735305, 5010775, 5869765, 8217671, 10812725, 18676525, 29348825, 41088355, 205441775]

約数ペア:

[(1, 205441775), (5, 41088355), (7, 29348825), (11, 18676525), (19, 10812725), (25, 8217671), (35, 5869765), (41, 5010775), (55, 3735305), (77, 2668075), (95, 2162545), (133, 1544675), (137, 1499575), (175, 1173953), (205, 1002155), (209, 982975), (275, 747061), (287, 715825), (385, 533615), (451, 455525), (475, 432509), (665, 308935), (685, 299915), (779, 263725), (959, 214225), (1025, 200431), (1045, 196595), (1435, 143165), (1463, 140425), (1507, 136325), (1925, 106723), (2255, 91105), (2603, 78925), (3157, 65075), (3325, 61787), (3425, 59983), (3895, 52745), (4795, 42845), (5225, 39319), (5453, 37675), (5617, 36575), (7175, 28633), (7315, 28085), (7535, 27265), (8569, 23975), (10549, 19475), (11275, 18221), (13015, 15785)]