19389725

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{197}}^1$

素因数の和:365

約数の個数: 24

約数和(自身を含む): 25141248

約数和(自身を除く): 5751523

約数列:

[1, 5, 25, 31, 127, 155, 197, 635, 775, 985, 3175, 3937, 4925, 6107, 19685, 25019, 30535, 98425, 125095, 152675, 625475, 775589, 3877945, 19389725]

約数ペア:

[(1, 19389725), (5, 3877945), (25, 775589), (31, 625475), (127, 152675), (155, 125095), (197, 98425), (635, 30535), (775, 25019), (985, 19685), (3175, 6107), (3937, 4925)]