20819266775

素因数分解:

$5^2\times {\mathrm{67}}^1\times {\mathrm{761}}^1\times {\mathrm{16333}}^1$

素因数の和:17171

約数の個数: 24

約数和(自身を含む): 26237238864

約数和(自身を除く): 5417972089

約数列:

[1, 5, 25, 67, 335, 761, 1675, 3805, 16333, 19025, 50987, 81665, 254935, 408325, 1094311, 1274675, 5471555, 12429413, 27357775, 62147065, 310735325, 832770671, 4163853355, 20819266775]

約数ペア:

[(1, 20819266775), (5, 4163853355), (25, 832770671), (67, 310735325), (335, 62147065), (761, 27357775), (1675, 12429413), (3805, 5471555), (16333, 1274675), (19025, 1094311), (50987, 408325), (81665, 254935)]