28916888

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:217

約数の個数: 128

約数和(自身を含む): 76446720

約数和(自身を除く): 47529832

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 23, 26, 28, 44, 46, 52, 56, 77, 88, 91, 92, 104, 143, 154, 157, 161, 182, 184, 253, 286, 299, 308, 314, 322, 364, 506, 572, 598, 616, 628, 644, 728, 1001, 1012, 1099, 1144, 1196, 1256, 1288, 1727, 1771, 2002, 2024, 2041, 2093, 2198, 2392, 3289, 3454, 3542, 3611, 4004, 4082, 4186, 4396, 6578, 6908, 7084, 7222, 8008, 8164, 8372, 8792, 12089, 13156, 13816, 14168, 14287, 14444, 16328, 16744, 22451, 23023, 24178, 25277, 26312, 28574, 28888, 39721, 44902, 46046, 46943, 48356, 50554, 57148, 79442, 89804, 92092, 93886, 96712, 101108, 114296, 157157, 158884, 179608, 184184, 187772, 202216, 278047, 314314, 317768, 328601, 375544, 516373, 556094, 628628, 657202, 1032746, 1112188, 1257256, 1314404, 2065492, 2224376, 2628808, 3614611, 4130984, 7229222, 14458444, 28916888]

約数ペア:

[(1, 28916888), (2, 14458444), (4, 7229222), (7, 4130984), (8, 3614611), (11, 2628808), (13, 2224376), (14, 2065492), (22, 1314404), (23, 1257256), (26, 1112188), (28, 1032746), (44, 657202), (46, 628628), (52, 556094), (56, 516373), (77, 375544), (88, 328601), (91, 317768), (92, 314314), (104, 278047), (143, 202216), (154, 187772), (157, 184184), (161, 179608), (182, 158884), (184, 157157), (253, 114296), (286, 101108), (299, 96712), (308, 93886), (314, 92092), (322, 89804), (364, 79442), (506, 57148), (572, 50554), (598, 48356), (616, 46943), (628, 46046), (644, 44902), (728, 39721), (1001, 28888), (1012, 28574), (1099, 26312), (1144, 25277), (1196, 24178), (1256, 23023), (1288, 22451), (1727, 16744), (1771, 16328), (2002, 14444), (2024, 14287), (2041, 14168), (2093, 13816), (2198, 13156), (2392, 12089), (3289, 8792), (3454, 8372), (3542, 8164), (3611, 8008), (4004, 7222), (4082, 7084), (4186, 6908), (4396, 6578)]