20283725

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 32247936

約数和(自身を除く): 11964211

約数列:

[1, 5, 7, 11, 25, 35, 41, 55, 77, 175, 205, 257, 275, 287, 385, 451, 1025, 1285, 1435, 1799, 1925, 2255, 2827, 3157, 6425, 7175, 8995, 10537, 11275, 14135, 15785, 19789, 44975, 52685, 70675, 73759, 78925, 98945, 115907, 263425, 368795, 494725, 579535, 811349, 1843975, 2897675, 4056745, 20283725]

約数ペア:

[(1, 20283725), (5, 4056745), (7, 2897675), (11, 1843975), (25, 811349), (35, 579535), (41, 494725), (55, 368795), (77, 263425), (175, 115907), (205, 98945), (257, 78925), (275, 73759), (287, 70675), (385, 52685), (451, 44975), (1025, 19789), (1285, 15785), (1435, 14135), (1799, 11275), (1925, 10537), (2255, 8995), (2827, 7175), (3157, 6425)]