400878478

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{211}}^1$

素因数の和:330

約数の個数: 96

約数和(自身を含む): 826820352

約数和(自身を除く): 425941874

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 73, 77, 91, 143, 146, 154, 169, 182, 211, 286, 338, 422, 511, 803, 949, 1001, 1022, 1183, 1477, 1606, 1859, 1898, 2002, 2321, 2366, 2743, 2954, 3718, 4642, 5486, 5621, 6643, 10439, 11242, 12337, 13013, 13286, 15403, 16247, 19201, 20878, 24674, 26026, 30173, 30806, 32494, 35659, 38402, 60346, 71318, 73073, 86359, 107821, 135707, 146146, 169433, 172718, 200239, 211211, 215642, 249613, 271414, 338866, 392249, 400478, 422422, 499226, 784498, 949949, 1186031, 1401673, 1899898, 2202629, 2372062, 2603107, 2745743, 2803346, 4405258, 5206214, 5491486, 15418403, 18221749, 28634177, 30836806, 36443498, 57268354, 200439239, 400878478]

約数ペア:

[(1, 400878478), (2, 200439239), (7, 57268354), (11, 36443498), (13, 30836806), (14, 28634177), (22, 18221749), (26, 15418403), (73, 5491486), (77, 5206214), (91, 4405258), (143, 2803346), (146, 2745743), (154, 2603107), (169, 2372062), (182, 2202629), (211, 1899898), (286, 1401673), (338, 1186031), (422, 949949), (511, 784498), (803, 499226), (949, 422422), (1001, 400478), (1022, 392249), (1183, 338866), (1477, 271414), (1606, 249613), (1859, 215642), (1898, 211211), (2002, 200239), (2321, 172718), (2366, 169433), (2743, 146146), (2954, 135707), (3718, 107821), (4642, 86359), (5486, 73073), (5621, 71318), (6643, 60346), (10439, 38402), (11242, 35659), (12337, 32494), (13013, 30806), (13286, 30173), (15403, 26026), (16247, 24674), (19201, 20878)]