28275725

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{907}}^1$

素因数の和:989

約数の個数: 24

約数和(自身を含む): 37155360

約数和(自身を除く): 8879635

約数列:

[1, 5, 25, 29, 43, 145, 215, 725, 907, 1075, 1247, 4535, 6235, 22675, 26303, 31175, 39001, 131515, 195005, 657575, 975025, 1131029, 5655145, 28275725]

約数ペア:

[(1, 28275725), (5, 5655145), (25, 1131029), (29, 975025), (43, 657575), (145, 195005), (215, 131515), (725, 39001), (907, 31175), (1075, 26303), (1247, 22675), (4535, 6235)]