81539964

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^2\times {\mathrm{18719}}^1$

素因数の和:18751

約数の個数: 54

約数和(自身を含む): 226568160

約数和(自身を除く): 145028196

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 121, 132, 198, 242, 363, 396, 484, 726, 1089, 1452, 2178, 4356, 18719, 37438, 56157, 74876, 112314, 168471, 205909, 224628, 336942, 411818, 617727, 673884, 823636, 1235454, 1853181, 2264999, 2470908, 3706362, 4529998, 6794997, 7412724, 9059996, 13589994, 20384991, 27179988, 40769982, 81539964]

約数ペア:

[(1, 81539964), (2, 40769982), (3, 27179988), (4, 20384991), (6, 13589994), (9, 9059996), (11, 7412724), (12, 6794997), (18, 4529998), (22, 3706362), (33, 2470908), (36, 2264999), (44, 1853181), (66, 1235454), (99, 823636), (121, 673884), (132, 617727), (198, 411818), (242, 336942), (363, 224628), (396, 205909), (484, 168471), (726, 112314), (1089, 74876), (1452, 56157), (2178, 37438), (4356, 18719)]