28253556

素因数分解:

$2^2\times 3^3\times {\mathrm{131}}^1\times {\mathrm{1997}}^1$

素因数の和:2141

約数の個数: 48

約数和(自身を含む): 73846080

約数和(自身を除く): 45592524

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 131, 262, 393, 524, 786, 1179, 1572, 1997, 2358, 3537, 3994, 4716, 5991, 7074, 7988, 11982, 14148, 17973, 23964, 35946, 53919, 71892, 107838, 215676, 261607, 523214, 784821, 1046428, 1569642, 2354463, 3139284, 4708926, 7063389, 9417852, 14126778, 28253556]

約数ペア:

[(1, 28253556), (2, 14126778), (3, 9417852), (4, 7063389), (6, 4708926), (9, 3139284), (12, 2354463), (18, 1569642), (27, 1046428), (36, 784821), (54, 523214), (108, 261607), (131, 215676), (262, 107838), (393, 71892), (524, 53919), (786, 35946), (1179, 23964), (1572, 17973), (1997, 14148), (2358, 11982), (3537, 7988), (3994, 7074), (4716, 5991)]