27778324

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 57335040

約数和(自身を除く): 29556716

約数列:

[1, 2, 4, 7, 14, 28, 71, 89, 142, 157, 178, 284, 314, 356, 497, 623, 628, 994, 1099, 1246, 1988, 2198, 2492, 4396, 6319, 11147, 12638, 13973, 22294, 25276, 27946, 44233, 44588, 55892, 78029, 88466, 97811, 156058, 176932, 195622, 312116, 391244, 992083, 1984166, 3968332, 6944581, 13889162, 27778324]

約数ペア:

[(1, 27778324), (2, 13889162), (4, 6944581), (7, 3968332), (14, 1984166), (28, 992083), (71, 391244), (89, 312116), (142, 195622), (157, 176932), (178, 156058), (284, 97811), (314, 88466), (356, 78029), (497, 55892), (623, 44588), (628, 44233), (994, 27946), (1099, 25276), (1246, 22294), (1988, 13973), (2198, 12638), (2492, 11147), (4396, 6319)]