20327648

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:160

約数の個数: 96

約数和(自身を含む): 47900160

約数和(自身を除く): 27572512

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 32, 34, 43, 44, 68, 79, 86, 88, 136, 158, 172, 176, 187, 272, 316, 344, 352, 374, 473, 544, 632, 688, 731, 748, 869, 946, 1264, 1343, 1376, 1462, 1496, 1738, 1892, 2528, 2686, 2924, 2992, 3397, 3476, 3784, 5372, 5848, 5984, 6794, 6952, 7568, 8041, 10744, 11696, 13588, 13904, 14773, 15136, 16082, 21488, 23392, 27176, 27808, 29546, 32164, 37367, 42976, 54352, 57749, 59092, 64328, 74734, 108704, 115498, 118184, 128656, 149468, 230996, 236368, 257312, 298936, 461992, 472736, 597872, 635239, 923984, 1195744, 1270478, 1847968, 2540956, 5081912, 10163824, 20327648]

約数ペア:

[(1, 20327648), (2, 10163824), (4, 5081912), (8, 2540956), (11, 1847968), (16, 1270478), (17, 1195744), (22, 923984), (32, 635239), (34, 597872), (43, 472736), (44, 461992), (68, 298936), (79, 257312), (86, 236368), (88, 230996), (136, 149468), (158, 128656), (172, 118184), (176, 115498), (187, 108704), (272, 74734), (316, 64328), (344, 59092), (352, 57749), (374, 54352), (473, 42976), (544, 37367), (632, 32164), (688, 29546), (731, 27808), (748, 27176), (869, 23392), (946, 21488), (1264, 16082), (1343, 15136), (1376, 14773), (1462, 13904), (1496, 13588), (1738, 11696), (1892, 10744), (2528, 8041), (2686, 7568), (2924, 6952), (2992, 6794), (3397, 5984), (3476, 5848), (3784, 5372)]