289544020

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{105673}}^1$

素因数の和:105819

約数の個数: 24

約数和(自身を含む): 612486504

約数和(自身を除く): 322942484

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 105673, 211346, 422692, 528365, 1056730, 2113460, 14477201, 28954402, 57908804, 72386005, 144772010, 289544020]

約数ペア:

[(1, 289544020), (2, 144772010), (4, 72386005), (5, 57908804), (10, 28954402), (20, 14477201), (137, 2113460), (274, 1056730), (548, 528365), (685, 422692), (1370, 211346), (2740, 105673)]