638862848

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1811}}^1$

素因数の和:1895

約数の個数: 80

約数和(自身を含む): 1401379056

約数和(自身を除く): 762516208

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 53, 64, 104, 106, 128, 208, 212, 256, 416, 424, 512, 689, 832, 848, 1378, 1664, 1696, 1811, 2756, 3328, 3392, 3622, 5512, 6656, 6784, 7244, 11024, 13568, 14488, 22048, 23543, 27136, 28976, 44096, 47086, 57952, 88192, 94172, 95983, 115904, 176384, 188344, 191966, 231808, 352768, 376688, 383932, 463616, 753376, 767864, 927232, 1247779, 1506752, 1535728, 2495558, 3013504, 3071456, 4991116, 6027008, 6142912, 9982232, 12054016, 12285824, 19964464, 24571648, 39928928, 49143296, 79857856, 159715712, 319431424, 638862848]

約数ペア:

[(1, 638862848), (2, 319431424), (4, 159715712), (8, 79857856), (13, 49143296), (16, 39928928), (26, 24571648), (32, 19964464), (52, 12285824), (53, 12054016), (64, 9982232), (104, 6142912), (106, 6027008), (128, 4991116), (208, 3071456), (212, 3013504), (256, 2495558), (416, 1535728), (424, 1506752), (512, 1247779), (689, 927232), (832, 767864), (848, 753376), (1378, 463616), (1664, 383932), (1696, 376688), (1811, 352768), (2756, 231808), (3328, 191966), (3392, 188344), (3622, 176384), (5512, 115904), (6656, 95983), (6784, 94172), (7244, 88192), (11024, 57952), (13568, 47086), (14488, 44096), (22048, 28976), (23543, 27136)]