278312195

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^2\times {\mathrm{2137}}^1$

素因数の和:2271

約数の個数: 24

約数和(自身を含む): 388226592

約数和(自身を除く): 109914397

約数列:

[1, 5, 7, 35, 61, 305, 427, 2135, 2137, 3721, 10685, 14959, 18605, 26047, 74795, 130235, 130357, 651785, 912499, 4562495, 7951777, 39758885, 55662439, 278312195]

約数ペア:

[(1, 278312195), (5, 55662439), (7, 39758885), (35, 7951777), (61, 4562495), (305, 912499), (427, 651785), (2135, 130357), (2137, 130235), (3721, 74795), (10685, 26047), (14959, 18605)]