205121718

素因数分解:

$2^1\times 3^2\times {\mathrm{83}}^1\times {\mathrm{251}}^1\times {\mathrm{547}}^1$

素因数の和:889

約数の個数: 48

約数和(自身を含む): 452402496

約数和(自身を除く): 247280778

約数列:

[1, 2, 3, 6, 9, 18, 83, 166, 249, 251, 498, 502, 547, 747, 753, 1094, 1494, 1506, 1641, 2259, 3282, 4518, 4923, 9846, 20833, 41666, 45401, 62499, 90802, 124998, 136203, 137297, 187497, 272406, 274594, 374994, 408609, 411891, 817218, 823782, 1235673, 2471346, 11395651, 22791302, 34186953, 68373906, 102560859, 205121718]

約数ペア:

[(1, 205121718), (2, 102560859), (3, 68373906), (6, 34186953), (9, 22791302), (18, 11395651), (83, 2471346), (166, 1235673), (249, 823782), (251, 817218), (498, 411891), (502, 408609), (547, 374994), (747, 274594), (753, 272406), (1094, 187497), (1494, 137297), (1506, 136203), (1641, 124998), (2259, 90802), (3282, 62499), (4518, 45401), (4923, 41666), (9846, 20833)]