18306828

素因数分解:

$2^2\times 3^2\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:287

約数の個数: 72

約数和(自身を含む): 48310080

約数和(自身を除く): 30003252

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 41, 79, 82, 123, 157, 158, 164, 237, 246, 314, 316, 369, 471, 474, 492, 628, 711, 738, 942, 948, 1413, 1422, 1476, 1884, 2826, 2844, 3239, 5652, 6437, 6478, 9717, 12403, 12874, 12956, 19311, 19434, 24806, 25748, 29151, 37209, 38622, 38868, 49612, 57933, 58302, 74418, 77244, 111627, 115866, 116604, 148836, 223254, 231732, 446508, 508523, 1017046, 1525569, 2034092, 3051138, 4576707, 6102276, 9153414, 18306828]

約数ペア:

[(1, 18306828), (2, 9153414), (3, 6102276), (4, 4576707), (6, 3051138), (9, 2034092), (12, 1525569), (18, 1017046), (36, 508523), (41, 446508), (79, 231732), (82, 223254), (123, 148836), (157, 116604), (158, 115866), (164, 111627), (237, 77244), (246, 74418), (314, 58302), (316, 57933), (369, 49612), (471, 38868), (474, 38622), (492, 37209), (628, 29151), (711, 25748), (738, 24806), (942, 19434), (948, 19311), (1413, 12956), (1422, 12874), (1476, 12403), (1884, 9717), (2826, 6478), (2844, 6437), (3239, 5652)]