128122972

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{233}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 242161920

約数和(自身を除く): 114038948

約数列:

[1, 2, 4, 23, 43, 46, 86, 92, 139, 172, 233, 278, 466, 556, 932, 989, 1978, 3197, 3956, 5359, 5977, 6394, 10019, 10718, 11954, 12788, 20038, 21436, 23908, 32387, 40076, 64774, 129548, 137471, 230437, 274942, 460874, 549884, 744901, 921748, 1392641, 1489802, 2785282, 2979604, 5570564, 32030743, 64061486, 128122972]

約数ペア:

[(1, 128122972), (2, 64061486), (4, 32030743), (23, 5570564), (43, 2979604), (46, 2785282), (86, 1489802), (92, 1392641), (139, 921748), (172, 744901), (233, 549884), (278, 460874), (466, 274942), (556, 230437), (932, 137471), (989, 129548), (1978, 64774), (3197, 40076), (3956, 32387), (5359, 23908), (5977, 21436), (6394, 20038), (10019, 12788), (10718, 11954)]