20479872

素因数分解:

$2^7\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{401}}^1$

素因数の和:444

約数の個数: 128

約数和(自身を含む): 65606400

約数和(自身を除く): 45126528

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 19, 21, 24, 28, 32, 38, 42, 48, 56, 57, 64, 76, 84, 96, 112, 114, 128, 133, 152, 168, 192, 224, 228, 266, 304, 336, 384, 399, 401, 448, 456, 532, 608, 672, 798, 802, 896, 912, 1064, 1203, 1216, 1344, 1596, 1604, 1824, 2128, 2406, 2432, 2688, 2807, 3192, 3208, 3648, 4256, 4812, 5614, 6384, 6416, 7296, 7619, 8421, 8512, 9624, 11228, 12768, 12832, 15238, 16842, 17024, 19248, 22456, 22857, 25536, 25664, 30476, 33684, 38496, 44912, 45714, 51072, 51328, 53333, 60952, 67368, 76992, 89824, 91428, 106666, 121904, 134736, 153984, 159999, 179648, 182856, 213332, 243808, 269472, 319998, 359296, 365712, 426664, 487616, 538944, 639996, 731424, 853328, 975232, 1077888, 1279992, 1462848, 1706656, 2559984, 2925696, 3413312, 5119968, 6826624, 10239936, 20479872]

約数ペア:

[(1, 20479872), (2, 10239936), (3, 6826624), (4, 5119968), (6, 3413312), (7, 2925696), (8, 2559984), (12, 1706656), (14, 1462848), (16, 1279992), (19, 1077888), (21, 975232), (24, 853328), (28, 731424), (32, 639996), (38, 538944), (42, 487616), (48, 426664), (56, 365712), (57, 359296), (64, 319998), (76, 269472), (84, 243808), (96, 213332), (112, 182856), (114, 179648), (128, 159999), (133, 153984), (152, 134736), (168, 121904), (192, 106666), (224, 91428), (228, 89824), (266, 76992), (304, 67368), (336, 60952), (384, 53333), (399, 51328), (401, 51072), (448, 45714), (456, 44912), (532, 38496), (608, 33684), (672, 30476), (798, 25664), (802, 25536), (896, 22857), (912, 22456), (1064, 19248), (1203, 17024), (1216, 16842), (1344, 15238), (1596, 12832), (1604, 12768), (1824, 11228), (2128, 9624), (2406, 8512), (2432, 8421), (2688, 7619), (2807, 7296), (3192, 6416), (3208, 6384), (3648, 5614), (4256, 4812)]