80385868

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{349}}^1\times {\mathrm{647}}^1$

素因数の和:1089

約数の個数: 24

約数和(自身を含む): 142884000

約数和(自身を除く): 62498132

約数列:

[1, 2, 4, 89, 178, 349, 356, 647, 698, 1294, 1396, 2588, 31061, 57583, 62122, 115166, 124244, 225803, 230332, 451606, 903212, 20096467, 40192934, 80385868]

約数ペア:

[(1, 80385868), (2, 40192934), (4, 20096467), (89, 903212), (178, 451606), (349, 230332), (356, 225803), (647, 124244), (698, 115166), (1294, 62122), (1396, 57583), (2588, 31061)]