18777928

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:111

約数の個数: 96

約数和(自身を含む): 43480800

約数和(自身を除く): 24702872

約数列:

[1, 2, 4, 8, 13, 17, 19, 26, 34, 38, 43, 52, 68, 76, 86, 104, 136, 152, 169, 172, 221, 247, 323, 338, 344, 442, 494, 559, 646, 676, 731, 817, 884, 988, 1118, 1292, 1352, 1462, 1634, 1768, 1976, 2236, 2584, 2873, 2924, 3211, 3268, 4199, 4472, 5746, 5848, 6422, 6536, 7267, 8398, 9503, 10621, 11492, 12844, 13889, 14534, 16796, 19006, 21242, 22984, 25688, 27778, 29068, 33592, 38012, 42484, 54587, 55556, 58136, 76024, 84968, 109174, 111112, 123539, 138073, 180557, 218348, 247078, 276146, 361114, 436696, 494156, 552292, 722228, 988312, 1104584, 1444456, 2347241, 4694482, 9388964, 18777928]

約数ペア:

[(1, 18777928), (2, 9388964), (4, 4694482), (8, 2347241), (13, 1444456), (17, 1104584), (19, 988312), (26, 722228), (34, 552292), (38, 494156), (43, 436696), (52, 361114), (68, 276146), (76, 247078), (86, 218348), (104, 180557), (136, 138073), (152, 123539), (169, 111112), (172, 109174), (221, 84968), (247, 76024), (323, 58136), (338, 55556), (344, 54587), (442, 42484), (494, 38012), (559, 33592), (646, 29068), (676, 27778), (731, 25688), (817, 22984), (884, 21242), (988, 19006), (1118, 16796), (1292, 14534), (1352, 13889), (1462, 12844), (1634, 11492), (1768, 10621), (1976, 9503), (2236, 8398), (2584, 7267), (2873, 6536), (2924, 6422), (3211, 5848), (3268, 5746), (4199, 4472)]