19679638784

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{88259}}^1$

素因数の和:88355

約数の個数: 72

約数和(自身を含む): 42936018720

約数和(自身を除く): 23256379936

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 67, 104, 128, 134, 208, 256, 268, 416, 536, 832, 871, 1072, 1664, 1742, 2144, 3328, 3484, 4288, 6968, 8576, 13936, 17152, 27872, 55744, 88259, 111488, 176518, 222976, 353036, 706072, 1147367, 1412144, 2294734, 2824288, 4589468, 5648576, 5913353, 9178936, 11297152, 11826706, 18357872, 22594304, 23653412, 36715744, 47306824, 73431488, 76873589, 94613648, 146862976, 153747178, 189227296, 293725952, 307494356, 378454592, 614988712, 756909184, 1229977424, 1513818368, 2459954848, 4919909696, 9839819392, 19679638784]

約数ペア:

[(1, 19679638784), (2, 9839819392), (4, 4919909696), (8, 2459954848), (13, 1513818368), (16, 1229977424), (26, 756909184), (32, 614988712), (52, 378454592), (64, 307494356), (67, 293725952), (104, 189227296), (128, 153747178), (134, 146862976), (208, 94613648), (256, 76873589), (268, 73431488), (416, 47306824), (536, 36715744), (832, 23653412), (871, 22594304), (1072, 18357872), (1664, 11826706), (1742, 11297152), (2144, 9178936), (3328, 5913353), (3484, 5648576), (4288, 4589468), (6968, 2824288), (8576, 2294734), (13936, 1412144), (17152, 1147367), (27872, 706072), (55744, 353036), (88259, 222976), (111488, 176518)]