840657958

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{337}}^1$

素因数の和:557

約数の個数: 64

約数和(自身を含む): 1545043968

約数和(自身を除く): 704386010

約数列:

[1, 2, 7, 14, 23, 46, 61, 122, 127, 161, 254, 322, 337, 427, 674, 854, 889, 1403, 1778, 2359, 2806, 2921, 4718, 5842, 7747, 7751, 9821, 15494, 15502, 19642, 20447, 20557, 40894, 41114, 42799, 54229, 54257, 85598, 108458, 108514, 143899, 178181, 287798, 299593, 356362, 472811, 599186, 945622, 984377, 1247267, 1968754, 2494534, 2610739, 3309677, 5221478, 6619354, 6890639, 13781278, 18275173, 36550346, 60046997, 120093994, 420328979, 840657958]

約数ペア:

[(1, 840657958), (2, 420328979), (7, 120093994), (14, 60046997), (23, 36550346), (46, 18275173), (61, 13781278), (122, 6890639), (127, 6619354), (161, 5221478), (254, 3309677), (322, 2610739), (337, 2494534), (427, 1968754), (674, 1247267), (854, 984377), (889, 945622), (1403, 599186), (1778, 472811), (2359, 356362), (2806, 299593), (2921, 287798), (4718, 178181), (5842, 143899), (7747, 108514), (7751, 108458), (9821, 85598), (15494, 54257), (15502, 54229), (19642, 42799), (20447, 41114), (20557, 40894)]