31218140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{82153}}^1$

素因数の和:82181

約数の個数: 24

約数和(自身を含む): 69009360

約数和(自身を除く): 37791220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 82153, 164306, 328612, 410765, 821530, 1560907, 1643060, 3121814, 6243628, 7804535, 15609070, 31218140]

約数ペア:

[(1, 31218140), (2, 15609070), (4, 7804535), (5, 6243628), (10, 3121814), (19, 1643060), (20, 1560907), (38, 821530), (76, 410765), (95, 328612), (190, 164306), (380, 82153)]