31213580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{82141}}^1$

素因数の和:82169

約数の個数: 24

約数和(自身を含む): 68999280

約数和(自身を除く): 37785700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 82141, 164282, 328564, 410705, 821410, 1560679, 1642820, 3121358, 6242716, 7803395, 15606790, 31213580]

約数ペア:

[(1, 31213580), (2, 15606790), (4, 7803395), (5, 6242716), (10, 3121358), (19, 1642820), (20, 1560679), (38, 821410), (76, 410705), (95, 328564), (190, 164282), (380, 82141)]