217470275

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:165

約数の個数: 72

約数和(自身を含む): 319614960

約数和(自身を除く): 102144685

約数列:

[1, 5, 11, 25, 29, 37, 55, 67, 121, 145, 185, 275, 319, 335, 407, 605, 725, 737, 925, 1073, 1595, 1675, 1943, 2035, 2479, 3025, 3509, 3685, 4477, 5365, 7975, 8107, 9715, 10175, 11803, 12395, 17545, 18425, 21373, 22385, 26825, 27269, 40535, 48575, 59015, 61975, 71891, 87725, 106865, 111925, 129833, 136345, 202675, 235103, 295075, 299959, 359455, 534325, 649165, 681725, 790801, 1175515, 1499795, 1797275, 3245825, 3954005, 5877575, 7498975, 8698811, 19770025, 43494055, 217470275]

約数ペア:

[(1, 217470275), (5, 43494055), (11, 19770025), (25, 8698811), (29, 7498975), (37, 5877575), (55, 3954005), (67, 3245825), (121, 1797275), (145, 1499795), (185, 1175515), (275, 790801), (319, 681725), (335, 649165), (407, 534325), (605, 359455), (725, 299959), (737, 295075), (925, 235103), (1073, 202675), (1595, 136345), (1675, 129833), (1943, 111925), (2035, 106865), (2479, 87725), (3025, 71891), (3509, 61975), (3685, 59015), (4477, 48575), (5365, 40535), (7975, 27269), (8107, 26825), (9715, 22385), (10175, 21373), (11803, 18425), (12395, 17545)]