161820906

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{1193}}^1$

素因数の和:1295

約数の個数: 64

約数和(自身を含む): 365879808

約数和(自身を除く): 204058902

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 47, 74, 78, 94, 111, 141, 222, 282, 481, 611, 962, 1193, 1222, 1443, 1739, 1833, 2386, 2886, 3478, 3579, 3666, 5217, 7158, 10434, 15509, 22607, 31018, 44141, 45214, 46527, 56071, 67821, 88282, 93054, 112142, 132423, 135642, 168213, 264846, 336426, 573833, 728923, 1147666, 1457846, 1721499, 2074627, 2186769, 3442998, 4149254, 4373538, 6223881, 12447762, 26970151, 53940302, 80910453, 161820906]

約数ペア:

[(1, 161820906), (2, 80910453), (3, 53940302), (6, 26970151), (13, 12447762), (26, 6223881), (37, 4373538), (39, 4149254), (47, 3442998), (74, 2186769), (78, 2074627), (94, 1721499), (111, 1457846), (141, 1147666), (222, 728923), (282, 573833), (481, 336426), (611, 264846), (962, 168213), (1193, 135642), (1222, 132423), (1443, 112142), (1739, 93054), (1833, 88282), (2386, 67821), (2886, 56071), (3478, 46527), (3579, 45214), (3666, 44141), (5217, 31018), (7158, 22607), (10434, 15509)]