20722675

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{283}}^1$

素因数の和:423

約数の個数: 24

約数和(自身を含む): 26940240

約数和(自身を除く): 6217565

約数列:

[1, 5, 25, 29, 101, 145, 283, 505, 725, 1415, 2525, 2929, 7075, 8207, 14645, 28583, 41035, 73225, 142915, 205175, 714575, 828907, 4144535, 20722675]

約数ペア:

[(1, 20722675), (5, 4144535), (25, 828907), (29, 714575), (101, 205175), (145, 142915), (283, 73225), (505, 41035), (725, 28583), (1415, 14645), (2525, 8207), (2929, 7075)]