20132688640

素因数分解:

$2^8\times 5^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{5381}}^1$

素因数の和:5518

約数の個数: 144

約数和(自身を含む): 50163684480

約数和(自身を除く): 30030995840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 79, 80, 128, 148, 158, 160, 185, 256, 296, 316, 320, 370, 395, 592, 632, 640, 740, 790, 1184, 1264, 1280, 1480, 1580, 2368, 2528, 2923, 2960, 3160, 4736, 5056, 5381, 5846, 5920, 6320, 9472, 10112, 10762, 11692, 11840, 12640, 14615, 20224, 21524, 23384, 23680, 25280, 26905, 29230, 43048, 46768, 47360, 50560, 53810, 58460, 86096, 93536, 101120, 107620, 116920, 172192, 187072, 199097, 215240, 233840, 344384, 374144, 398194, 425099, 430480, 467680, 688768, 748288, 796388, 850198, 860960, 935360, 995485, 1377536, 1592776, 1700396, 1721920, 1870720, 1990970, 2125495, 3185552, 3400792, 3443840, 3741440, 3981940, 4250990, 6371104, 6801584, 6887680, 7963880, 8501980, 12742208, 13603168, 15728663, 15927760, 17003960, 25484416, 27206336, 31457326, 31855520, 34007920, 50968832, 54412672, 62914652, 63711040, 68015840, 78643315, 108825344, 125829304, 127422080, 136031680, 157286630, 251658608, 254844160, 272063360, 314573260, 503317216, 544126720, 629146520, 1006634432, 1258293040, 2013268864, 2516586080, 4026537728, 5033172160, 10066344320, 20132688640]

約数ペア:

[(1, 20132688640), (2, 10066344320), (4, 5033172160), (5, 4026537728), (8, 2516586080), (10, 2013268864), (16, 1258293040), (20, 1006634432), (32, 629146520), (37, 544126720), (40, 503317216), (64, 314573260), (74, 272063360), (79, 254844160), (80, 251658608), (128, 157286630), (148, 136031680), (158, 127422080), (160, 125829304), (185, 108825344), (256, 78643315), (296, 68015840), (316, 63711040), (320, 62914652), (370, 54412672), (395, 50968832), (592, 34007920), (632, 31855520), (640, 31457326), (740, 27206336), (790, 25484416), (1184, 17003960), (1264, 15927760), (1280, 15728663), (1480, 13603168), (1580, 12742208), (2368, 8501980), (2528, 7963880), (2923, 6887680), (2960, 6801584), (3160, 6371104), (4736, 4250990), (5056, 3981940), (5381, 3741440), (5846, 3443840), (5920, 3400792), (6320, 3185552), (9472, 2125495), (10112, 1990970), (10762, 1870720), (11692, 1721920), (11840, 1700396), (12640, 1592776), (14615, 1377536), (20224, 995485), (21524, 935360), (23384, 860960), (23680, 850198), (25280, 796388), (26905, 748288), (29230, 688768), (43048, 467680), (46768, 430480), (47360, 425099), (50560, 398194), (53810, 374144), (58460, 344384), (86096, 233840), (93536, 215240), (101120, 199097), (107620, 187072), (116920, 172192)]