18814936208

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{349}}^1\times {\mathrm{617}}^1$

素因数の和:1144

約数の個数: 80

約数和(自身を含む): 37764249600

約数和(自身を除く): 18949313392

約数列:

[1, 2, 4, 8, 16, 43, 86, 127, 172, 254, 344, 349, 508, 617, 688, 698, 1016, 1234, 1396, 2032, 2468, 2792, 4936, 5461, 5584, 9872, 10922, 15007, 21844, 26531, 30014, 43688, 44323, 53062, 60028, 78359, 87376, 88646, 106124, 120056, 156718, 177292, 212248, 215333, 240112, 313436, 354584, 424496, 430666, 626872, 709168, 861332, 1253744, 1722664, 1905889, 3369437, 3445328, 3811778, 6738874, 7623556, 9259319, 13477748, 15247112, 18518638, 26955496, 27347291, 30494224, 37037276, 53910992, 54694582, 74074552, 109389164, 148149104, 218778328, 437556656, 1175933513, 2351867026, 4703734052, 9407468104, 18814936208]

約数ペア:

[(1, 18814936208), (2, 9407468104), (4, 4703734052), (8, 2351867026), (16, 1175933513), (43, 437556656), (86, 218778328), (127, 148149104), (172, 109389164), (254, 74074552), (344, 54694582), (349, 53910992), (508, 37037276), (617, 30494224), (688, 27347291), (698, 26955496), (1016, 18518638), (1234, 15247112), (1396, 13477748), (2032, 9259319), (2468, 7623556), (2792, 6738874), (4936, 3811778), (5461, 3445328), (5584, 3369437), (9872, 1905889), (10922, 1722664), (15007, 1253744), (21844, 861332), (26531, 709168), (30014, 626872), (43688, 430666), (44323, 424496), (53062, 354584), (60028, 313436), (78359, 240112), (87376, 215333), (88646, 212248), (106124, 177292), (120056, 156718)]