128912385

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{175391}}^1$

素因数の和:175413

約数の個数: 24

約数和(自身を含む): 239936256

約数和(自身を除く): 111023871

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 175391, 526173, 876955, 1227737, 2630865, 3683211, 6138685, 8594159, 18416055, 25782477, 42970795, 128912385]

約数ペア:

[(1, 128912385), (3, 42970795), (5, 25782477), (7, 18416055), (15, 8594159), (21, 6138685), (35, 3683211), (49, 2630865), (105, 1227737), (147, 876955), (245, 526173), (735, 175391)]