399940545

素因数分解:

$3^1\times 5^1\times {\mathrm{3121}}^1\times {\mathrm{8543}}^1$

素因数の和:11672

約数の個数: 16

約数和(自身を含む): 640184832

約数和(自身を除く): 240244287

約数列:

[1, 3, 5, 15, 3121, 8543, 9363, 15605, 25629, 42715, 46815, 128145, 26662703, 79988109, 133313515, 399940545]

約数ペア:

[(1, 399940545), (3, 133313515), (5, 79988109), (15, 26662703), (3121, 128145), (8543, 46815), (9363, 42715), (15605, 25629)]