19492470

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1987}}^1$

素因数の和:2109

約数の個数: 48

約数和(自身を含む): 51171120

約数和(自身を除く): 31678650

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 109, 218, 327, 545, 654, 981, 1090, 1635, 1962, 1987, 3270, 3974, 4905, 5961, 9810, 9935, 11922, 17883, 19870, 29805, 35766, 59610, 89415, 178830, 216583, 433166, 649749, 1082915, 1299498, 1949247, 2165830, 3248745, 3898494, 6497490, 9746235, 19492470]

約数ペア:

[(1, 19492470), (2, 9746235), (3, 6497490), (5, 3898494), (6, 3248745), (9, 2165830), (10, 1949247), (15, 1299498), (18, 1082915), (30, 649749), (45, 433166), (90, 216583), (109, 178830), (218, 89415), (327, 59610), (545, 35766), (654, 29805), (981, 19870), (1090, 17883), (1635, 11922), (1962, 9935), (1987, 9810), (3270, 5961), (3974, 4905)]