127788975

素因数分解:

$3^3\times 5^2\times {\mathrm{31}}^2\times {\mathrm{197}}^1$

素因数の和:278

約数の個数: 72

約数和(自身を含む): 243801360

約数和(自身を除く): 116012385

約数列:

[1, 3, 5, 9, 15, 25, 27, 31, 45, 75, 93, 135, 155, 197, 225, 279, 465, 591, 675, 775, 837, 961, 985, 1395, 1773, 2325, 2883, 2955, 4185, 4805, 4925, 5319, 6107, 6975, 8649, 8865, 14415, 14775, 18321, 20925, 24025, 25947, 26595, 30535, 43245, 44325, 54963, 72075, 91605, 129735, 132975, 152675, 164889, 189317, 216225, 274815, 458025, 567951, 648675, 824445, 946585, 1374075, 1703853, 2839755, 4122225, 4732925, 5111559, 8519265, 14198775, 25557795, 42596325, 127788975]

約数ペア:

[(1, 127788975), (3, 42596325), (5, 25557795), (9, 14198775), (15, 8519265), (25, 5111559), (27, 4732925), (31, 4122225), (45, 2839755), (75, 1703853), (93, 1374075), (135, 946585), (155, 824445), (197, 648675), (225, 567951), (279, 458025), (465, 274815), (591, 216225), (675, 189317), (775, 164889), (837, 152675), (961, 132975), (985, 129735), (1395, 91605), (1773, 72075), (2325, 54963), (2883, 44325), (2955, 43245), (4185, 30535), (4805, 26595), (4925, 25947), (5319, 24025), (6107, 20925), (6975, 18321), (8649, 14775), (8865, 14415)]