19728207678

素因数分解:

$2^1\times 3^1\times {\mathrm{199}}^1\times {\mathrm{239}}^1\times {\mathrm{257}}^1\times {\mathrm{269}}^1$

素因数の和:969

約数の個数: 64

約数和(自身を含む): 40124160000

約数和(自身を除く): 20395952322

約数列:

[1, 2, 3, 6, 199, 239, 257, 269, 398, 478, 514, 538, 597, 717, 771, 807, 1194, 1434, 1542, 1614, 47561, 51143, 53531, 61423, 64291, 69133, 95122, 102286, 107062, 122846, 128582, 138266, 142683, 153429, 160593, 184269, 192873, 207399, 285366, 306858, 321186, 368538, 385746, 414798, 12223177, 12793909, 13757467, 16522787, 24446354, 25587818, 27514934, 33045574, 36669531, 38381727, 41272401, 49568361, 73339062, 76763454, 82544802, 99136722, 3288034613, 6576069226, 9864103839, 19728207678]

約数ペア:

[(1, 19728207678), (2, 9864103839), (3, 6576069226), (6, 3288034613), (199, 99136722), (239, 82544802), (257, 76763454), (269, 73339062), (398, 49568361), (478, 41272401), (514, 38381727), (538, 36669531), (597, 33045574), (717, 27514934), (771, 25587818), (807, 24446354), (1194, 16522787), (1434, 13757467), (1542, 12793909), (1614, 12223177), (47561, 414798), (51143, 385746), (53531, 368538), (61423, 321186), (64291, 306858), (69133, 285366), (95122, 207399), (102286, 192873), (107062, 184269), (122846, 160593), (128582, 153429), (138266, 142683)]