20726784

素因数分解:

$2^{10}\times 3^2\times {\mathrm{13}}^1\times {\mathrm{173}}^1$

素因数の和:212

約数の個数: 132

約数和(自身を含む): 64824396

約数和(自身を除く): 44097612

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 64, 72, 78, 96, 104, 117, 128, 144, 156, 173, 192, 208, 234, 256, 288, 312, 346, 384, 416, 468, 512, 519, 576, 624, 692, 768, 832, 936, 1024, 1038, 1152, 1248, 1384, 1536, 1557, 1664, 1872, 2076, 2249, 2304, 2496, 2768, 3072, 3114, 3328, 3744, 4152, 4498, 4608, 4992, 5536, 6228, 6656, 6747, 7488, 8304, 8996, 9216, 9984, 11072, 12456, 13312, 13494, 14976, 16608, 17992, 19968, 20241, 22144, 24912, 26988, 29952, 33216, 35984, 39936, 40482, 44288, 49824, 53976, 59904, 66432, 71968, 80964, 88576, 99648, 107952, 119808, 132864, 143936, 161928, 177152, 199296, 215904, 265728, 287872, 323856, 398592, 431808, 531456, 575744, 647712, 797184, 863616, 1151488, 1295424, 1594368, 1727232, 2302976, 2590848, 3454464, 5181696, 6908928, 10363392, 20726784]

約数ペア:

[(1, 20726784), (2, 10363392), (3, 6908928), (4, 5181696), (6, 3454464), (8, 2590848), (9, 2302976), (12, 1727232), (13, 1594368), (16, 1295424), (18, 1151488), (24, 863616), (26, 797184), (32, 647712), (36, 575744), (39, 531456), (48, 431808), (52, 398592), (64, 323856), (72, 287872), (78, 265728), (96, 215904), (104, 199296), (117, 177152), (128, 161928), (144, 143936), (156, 132864), (173, 119808), (192, 107952), (208, 99648), (234, 88576), (256, 80964), (288, 71968), (312, 66432), (346, 59904), (384, 53976), (416, 49824), (468, 44288), (512, 40482), (519, 39936), (576, 35984), (624, 33216), (692, 29952), (768, 26988), (832, 24912), (936, 22144), (1024, 20241), (1038, 19968), (1152, 17992), (1248, 16608), (1384, 14976), (1536, 13494), (1557, 13312), (1664, 12456), (1872, 11072), (2076, 9984), (2249, 9216), (2304, 8996), (2496, 8304), (2768, 7488), (3072, 6747), (3114, 6656), (3328, 6228), (3744, 5536), (4152, 4992), (4498, 4608)]