388944275

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{907}}^1\times {\mathrm{1009}}^1$

素因数の和:1943

約数の個数: 24

約数和(自身を含む): 511730640

約数和(自身を除く): 122786365

約数列:

[1, 5, 17, 25, 85, 425, 907, 1009, 4535, 5045, 15419, 17153, 22675, 25225, 77095, 85765, 385475, 428825, 915163, 4575815, 15557771, 22879075, 77788855, 388944275]

約数ペア:

[(1, 388944275), (5, 77788855), (17, 22879075), (25, 15557771), (85, 4575815), (425, 915163), (907, 428825), (1009, 385475), (4535, 85765), (5045, 77095), (15419, 25225), (17153, 22675)]