86561440

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:271

約数の個数: 144

約数和(自身を含む): 243125064

約数和(自身を除く): 156563624

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 61, 70, 80, 98, 112, 122, 140, 160, 181, 196, 224, 244, 245, 280, 305, 362, 392, 427, 488, 490, 560, 610, 724, 784, 854, 905, 976, 980, 1120, 1220, 1267, 1448, 1568, 1708, 1810, 1952, 1960, 2135, 2440, 2534, 2896, 2989, 3416, 3620, 3920, 4270, 4880, 5068, 5792, 5978, 6335, 6832, 7240, 7840, 8540, 8869, 9760, 10136, 11041, 11956, 12670, 13664, 14480, 14945, 17080, 17738, 20272, 22082, 23912, 25340, 28960, 29890, 34160, 35476, 40544, 44164, 44345, 47824, 50680, 55205, 59780, 68320, 70952, 77287, 88328, 88690, 95648, 101360, 110410, 119560, 141904, 154574, 176656, 177380, 202720, 220820, 239120, 283808, 309148, 353312, 354760, 386435, 441640, 478240, 541009, 618296, 709520, 772870, 883280, 1082018, 1236592, 1419040, 1545740, 1766560, 2164036, 2473184, 2705045, 3091480, 4328072, 5410090, 6182960, 8656144, 10820180, 12365920, 17312288, 21640360, 43280720, 86561440]

約数ペア:

[(1, 86561440), (2, 43280720), (4, 21640360), (5, 17312288), (7, 12365920), (8, 10820180), (10, 8656144), (14, 6182960), (16, 5410090), (20, 4328072), (28, 3091480), (32, 2705045), (35, 2473184), (40, 2164036), (49, 1766560), (56, 1545740), (61, 1419040), (70, 1236592), (80, 1082018), (98, 883280), (112, 772870), (122, 709520), (140, 618296), (160, 541009), (181, 478240), (196, 441640), (224, 386435), (244, 354760), (245, 353312), (280, 309148), (305, 283808), (362, 239120), (392, 220820), (427, 202720), (488, 177380), (490, 176656), (560, 154574), (610, 141904), (724, 119560), (784, 110410), (854, 101360), (905, 95648), (976, 88690), (980, 88328), (1120, 77287), (1220, 70952), (1267, 68320), (1448, 59780), (1568, 55205), (1708, 50680), (1810, 47824), (1952, 44345), (1960, 44164), (2135, 40544), (2440, 35476), (2534, 34160), (2896, 29890), (2989, 28960), (3416, 25340), (3620, 23912), (3920, 22082), (4270, 20272), (4880, 17738), (5068, 17080), (5792, 14945), (5978, 14480), (6335, 13664), (6832, 12670), (7240, 11956), (7840, 11041), (8540, 10136), (8869, 9760)]