25730240

素因数分解:

$2^6\times 5^1\times {\mathrm{80407}}^1$

素因数の和:80424

約数の個数: 28

約数和(自身を含む): 61270896

約数和(自身を除く): 35540656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 80407, 160814, 321628, 402035, 643256, 804070, 1286512, 1608140, 2573024, 3216280, 5146048, 6432560, 12865120, 25730240]

約数ペア:

[(1, 25730240), (2, 12865120), (4, 6432560), (5, 5146048), (8, 3216280), (10, 2573024), (16, 1608140), (20, 1286512), (32, 804070), (40, 643256), (64, 402035), (80, 321628), (160, 160814), (320, 80407)]