20180954768

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{145463}}^1$

素因数の和:145536

約数の個数: 80

約数和(自身を含む): 45454590720

約数和(自身を除く): 25273635952

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 29, 46, 52, 58, 92, 104, 116, 184, 208, 232, 299, 368, 377, 464, 598, 667, 754, 1196, 1334, 1508, 2392, 2668, 3016, 4784, 5336, 6032, 8671, 10672, 17342, 34684, 69368, 138736, 145463, 290926, 581852, 1163704, 1891019, 2327408, 3345649, 3782038, 4218427, 6691298, 7564076, 8436854, 13382596, 15128152, 16873708, 26765192, 30256304, 33747416, 43493437, 53530384, 54839551, 67494832, 86986874, 97023821, 109679102, 173973748, 194047642, 219358204, 347947496, 388095284, 438716408, 695894992, 776190568, 877432816, 1261309673, 1552381136, 2522619346, 5045238692, 10090477384, 20180954768]

約数ペア:

[(1, 20180954768), (2, 10090477384), (4, 5045238692), (8, 2522619346), (13, 1552381136), (16, 1261309673), (23, 877432816), (26, 776190568), (29, 695894992), (46, 438716408), (52, 388095284), (58, 347947496), (92, 219358204), (104, 194047642), (116, 173973748), (184, 109679102), (208, 97023821), (232, 86986874), (299, 67494832), (368, 54839551), (377, 53530384), (464, 43493437), (598, 33747416), (667, 30256304), (754, 26765192), (1196, 16873708), (1334, 15128152), (1508, 13382596), (2392, 8436854), (2668, 7564076), (3016, 6691298), (4784, 4218427), (5336, 3782038), (6032, 3345649), (8671, 2327408), (10672, 1891019), (17342, 1163704), (34684, 581852), (69368, 290926), (138736, 145463)]