28110980

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{8623}}^1$

素因数の和:8795

約数の個数: 24

約数和(自身を含む): 59402112

約数和(自身を除く): 31291132

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 8623, 17246, 34492, 43115, 86230, 172460, 1405549, 2811098, 5622196, 7027745, 14055490, 28110980]

約数ペア:

[(1, 28110980), (2, 14055490), (4, 7027745), (5, 5622196), (10, 2811098), (20, 1405549), (163, 172460), (326, 86230), (652, 43115), (815, 34492), (1630, 17246), (3260, 8623)]