1389465440

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1123}}^1$

素因数の和:1205

約数の個数: 192

約数和(自身を含む): 3874832640

約数和(自身を除く): 2485367200

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 37, 38, 40, 44, 55, 74, 76, 80, 88, 95, 110, 148, 152, 160, 176, 185, 190, 209, 220, 296, 304, 352, 370, 380, 407, 418, 440, 592, 608, 703, 740, 760, 814, 836, 880, 1045, 1123, 1184, 1406, 1480, 1520, 1628, 1672, 1760, 2035, 2090, 2246, 2812, 2960, 3040, 3256, 3344, 3515, 4070, 4180, 4492, 5615, 5624, 5920, 6512, 6688, 7030, 7733, 8140, 8360, 8984, 11230, 11248, 12353, 13024, 14060, 15466, 16280, 16720, 17968, 21337, 22460, 22496, 24706, 28120, 30932, 32560, 33440, 35936, 38665, 41551, 42674, 44920, 49412, 56240, 61765, 61864, 65120, 77330, 83102, 85348, 89840, 98824, 106685, 112480, 123530, 123728, 154660, 166204, 170696, 179680, 197648, 207755, 213370, 234707, 247060, 247456, 309320, 332408, 341392, 395296, 415510, 426740, 457061, 469414, 494120, 618640, 664816, 682784, 789469, 831020, 853480, 914122, 938828, 988240, 1173535, 1237280, 1329632, 1578938, 1662040, 1706960, 1828244, 1877656, 1976480, 2285305, 2347070, 3157876, 3324080, 3413920, 3656488, 3755312, 3947345, 4570610, 4694140, 6315752, 6648160, 7312976, 7510624, 7894690, 8684159, 9141220, 9388280, 12631504, 14625952, 15789380, 17368318, 18282440, 18776560, 25263008, 31578760, 34736636, 36564880, 37553120, 43420795, 63157520, 69473272, 73129760, 86841590, 126315040, 138946544, 173683180, 277893088, 347366360, 694732720, 1389465440]

約数ペア:

[(1, 1389465440), (2, 694732720), (4, 347366360), (5, 277893088), (8, 173683180), (10, 138946544), (11, 126315040), (16, 86841590), (19, 73129760), (20, 69473272), (22, 63157520), (32, 43420795), (37, 37553120), (38, 36564880), (40, 34736636), (44, 31578760), (55, 25263008), (74, 18776560), (76, 18282440), (80, 17368318), (88, 15789380), (95, 14625952), (110, 12631504), (148, 9388280), (152, 9141220), (160, 8684159), (176, 7894690), (185, 7510624), (190, 7312976), (209, 6648160), (220, 6315752), (296, 4694140), (304, 4570610), (352, 3947345), (370, 3755312), (380, 3656488), (407, 3413920), (418, 3324080), (440, 3157876), (592, 2347070), (608, 2285305), (703, 1976480), (740, 1877656), (760, 1828244), (814, 1706960), (836, 1662040), (880, 1578938), (1045, 1329632), (1123, 1237280), (1184, 1173535), (1406, 988240), (1480, 938828), (1520, 914122), (1628, 853480), (1672, 831020), (1760, 789469), (2035, 682784), (2090, 664816), (2246, 618640), (2812, 494120), (2960, 469414), (3040, 457061), (3256, 426740), (3344, 415510), (3515, 395296), (4070, 341392), (4180, 332408), (4492, 309320), (5615, 247456), (5624, 247060), (5920, 234707), (6512, 213370), (6688, 207755), (7030, 197648), (7733, 179680), (8140, 170696), (8360, 166204), (8984, 154660), (11230, 123728), (11248, 123530), (12353, 112480), (13024, 106685), (14060, 98824), (15466, 89840), (16280, 85348), (16720, 83102), (17968, 77330), (21337, 65120), (22460, 61864), (22496, 61765), (24706, 56240), (28120, 49412), (30932, 44920), (32560, 42674), (33440, 41551), (35936, 38665)]