68390518

素因数分解:

$2^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{72911}}^1$

素因数の和:72987

約数の個数: 16

約数和(自身を含む): 118992384

約数和(自身を除く): 50601866

約数列:

[1, 2, 7, 14, 67, 134, 469, 938, 72911, 145822, 510377, 1020754, 4885037, 9770074, 34195259, 68390518]

約数ペア:

[(1, 68390518), (2, 34195259), (7, 9770074), (14, 4885037), (67, 1020754), (134, 510377), (469, 145822), (938, 72911)]