78385920

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1$

素因数の和:310

約数の個数: 144

約数和(自身を含む): 253864800

約数和(自身を除く): 175478880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 137, 149, 160, 192, 240, 256, 274, 298, 320, 384, 411, 447, 480, 548, 596, 640, 685, 745, 768, 822, 894, 960, 1096, 1192, 1280, 1370, 1490, 1644, 1788, 1920, 2055, 2192, 2235, 2384, 2740, 2980, 3288, 3576, 3840, 4110, 4384, 4470, 4768, 5480, 5960, 6576, 7152, 8220, 8768, 8940, 9536, 10960, 11920, 13152, 14304, 16440, 17536, 17880, 19072, 20413, 21920, 23840, 26304, 28608, 32880, 35072, 35760, 38144, 40826, 43840, 47680, 52608, 57216, 61239, 65760, 71520, 81652, 87680, 95360, 102065, 105216, 114432, 122478, 131520, 143040, 163304, 175360, 190720, 204130, 244956, 263040, 286080, 306195, 326608, 408260, 489912, 526080, 572160, 612390, 653216, 816520, 979824, 1224780, 1306432, 1633040, 1959648, 2449560, 2612864, 3266080, 3919296, 4899120, 5225728, 6532160, 7838592, 9798240, 13064320, 15677184, 19596480, 26128640, 39192960, 78385920]

約数ペア:

[(1, 78385920), (2, 39192960), (3, 26128640), (4, 19596480), (5, 15677184), (6, 13064320), (8, 9798240), (10, 7838592), (12, 6532160), (15, 5225728), (16, 4899120), (20, 3919296), (24, 3266080), (30, 2612864), (32, 2449560), (40, 1959648), (48, 1633040), (60, 1306432), (64, 1224780), (80, 979824), (96, 816520), (120, 653216), (128, 612390), (137, 572160), (149, 526080), (160, 489912), (192, 408260), (240, 326608), (256, 306195), (274, 286080), (298, 263040), (320, 244956), (384, 204130), (411, 190720), (447, 175360), (480, 163304), (548, 143040), (596, 131520), (640, 122478), (685, 114432), (745, 105216), (768, 102065), (822, 95360), (894, 87680), (960, 81652), (1096, 71520), (1192, 65760), (1280, 61239), (1370, 57216), (1490, 52608), (1644, 47680), (1788, 43840), (1920, 40826), (2055, 38144), (2192, 35760), (2235, 35072), (2384, 32880), (2740, 28608), (2980, 26304), (3288, 23840), (3576, 21920), (3840, 20413), (4110, 19072), (4384, 17880), (4470, 17536), (4768, 16440), (5480, 14304), (5960, 13152), (6576, 11920), (7152, 10960), (8220, 9536), (8768, 8940)]