16854920

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4091}}^1$

素因数の和:4205

約数の個数: 32

約数和(自身を含む): 38301120

約数和(自身を除く): 21446200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4091, 4120, 8182, 16364, 20455, 32728, 40910, 81820, 163640, 421373, 842746, 1685492, 2106865, 3370984, 4213730, 8427460, 16854920]

約数ペア:

[(1, 16854920), (2, 8427460), (4, 4213730), (5, 3370984), (8, 2106865), (10, 1685492), (20, 842746), (40, 421373), (103, 163640), (206, 81820), (412, 40910), (515, 32728), (824, 20455), (1030, 16364), (2060, 8182), (4091, 4120)]