39978978

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{89}}^1\times {\mathrm{443}}^1$

素因数の和:563

約数の個数: 48

約数和(自身を含む): 87752160

約数和(自身を除く): 47773182

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 89, 169, 178, 267, 338, 443, 507, 534, 886, 1014, 1157, 1329, 2314, 2658, 3471, 5759, 6942, 11518, 15041, 17277, 30082, 34554, 39427, 45123, 74867, 78854, 90246, 118281, 149734, 224601, 236562, 449202, 512551, 1025102, 1537653, 3075306, 6663163, 13326326, 19989489, 39978978]

約数ペア:

[(1, 39978978), (2, 19989489), (3, 13326326), (6, 6663163), (13, 3075306), (26, 1537653), (39, 1025102), (78, 512551), (89, 449202), (169, 236562), (178, 224601), (267, 149734), (338, 118281), (443, 90246), (507, 78854), (534, 74867), (886, 45123), (1014, 39427), (1157, 34554), (1329, 30082), (2314, 17277), (2658, 15041), (3471, 11518), (5759, 6942)]