205940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1471}}^1$

素因数の和:1487

約数の個数: 24

約数和(自身を含む): 494592

約数和(自身を除く): 288652

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1471, 2942, 5884, 7355, 10297, 14710, 20594, 29420, 41188, 51485, 102970, 205940]

約数ペア:

[(1, 205940), (2, 102970), (4, 51485), (5, 41188), (7, 29420), (10, 20594), (14, 14710), (20, 10297), (28, 7355), (35, 5884), (70, 2942), (140, 1471)]