345940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{353}}^1$

素因数の和:376

約数の個数: 36

約数和(自身を含む): 847476

約数和(自身を除く): 501536

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 353, 490, 706, 980, 1412, 1765, 2471, 3530, 4942, 7060, 9884, 12355, 17297, 24710, 34594, 49420, 69188, 86485, 172970, 345940]

約数ペア:

[(1, 345940), (2, 172970), (4, 86485), (5, 69188), (7, 49420), (10, 34594), (14, 24710), (20, 17297), (28, 12355), (35, 9884), (49, 7060), (70, 4942), (98, 3530), (140, 2471), (196, 1765), (245, 1412), (353, 980), (490, 706)]