28772780

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{17333}}^1$

素因数の和:17425

約数の個数: 24

約数和(自身を含む): 61154352

約数和(自身を除く): 32381572

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 17333, 34666, 69332, 86665, 173330, 346660, 1438639, 2877278, 5754556, 7193195, 14386390, 28772780]

約数ペア:

[(1, 28772780), (2, 14386390), (4, 7193195), (5, 5754556), (10, 2877278), (20, 1438639), (83, 346660), (166, 173330), (332, 86665), (415, 69332), (830, 34666), (1660, 17333)]