215428365

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{1279}}^1$

素因数の和:1506

約数の個数: 48

約数和(自身を含む): 395366400

約数和(自身を除く): 179938035

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 197, 285, 591, 855, 985, 1279, 1773, 2955, 3743, 3837, 6395, 8865, 11229, 11511, 18715, 19185, 24301, 33687, 56145, 57555, 72903, 121505, 168435, 218709, 251963, 364515, 755889, 1093545, 1259815, 2267667, 3779445, 4787297, 11338335, 14361891, 23936485, 43085673, 71809455, 215428365]

約数ペア:

[(1, 215428365), (3, 71809455), (5, 43085673), (9, 23936485), (15, 14361891), (19, 11338335), (45, 4787297), (57, 3779445), (95, 2267667), (171, 1259815), (197, 1093545), (285, 755889), (591, 364515), (855, 251963), (985, 218709), (1279, 168435), (1773, 121505), (2955, 72903), (3743, 57555), (3837, 56145), (6395, 33687), (8865, 24301), (11229, 19185), (11511, 18715)]