400399995

素因数分解:

$3^1\times 5^1\times {\mathrm{97}}^2\times {\mathrm{2837}}^1$

素因数の和:3039

約数の個数: 24

約数和(自身を含む): 647540784

約数和(自身を除く): 247140789

約数列:

[1, 3, 5, 15, 97, 291, 485, 1455, 2837, 8511, 9409, 14185, 28227, 42555, 47045, 141135, 275189, 825567, 1375945, 4127835, 26693333, 80079999, 133466665, 400399995]

約数ペア:

[(1, 400399995), (3, 133466665), (5, 80079999), (15, 26693333), (97, 4127835), (291, 1375945), (485, 825567), (1455, 275189), (2837, 141135), (8511, 47045), (9409, 42555), (14185, 28227)]