66448120

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{7873}}^1$

素因数の和:8095

約数の個数: 32

約数和(自身を含む): 150235920

約数和(自身を除く): 83787800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 4220, 7873, 8440, 15746, 31492, 39365, 62984, 78730, 157460, 314920, 1661203, 3322406, 6644812, 8306015, 13289624, 16612030, 33224060, 66448120]

約数ペア:

[(1, 66448120), (2, 33224060), (4, 16612030), (5, 13289624), (8, 8306015), (10, 6644812), (20, 3322406), (40, 1661203), (211, 314920), (422, 157460), (844, 78730), (1055, 62984), (1688, 39365), (2110, 31492), (4220, 15746), (7873, 8440)]