20649248

素因数分解:

$2^5\times {\mathrm{101}}^1\times {\mathrm{6389}}^1$

素因数の和:6500

約数の個数: 24

約数和(自身を含む): 41062140

約数和(自身を除く): 20412892

約数列:

[1, 2, 4, 8, 16, 32, 101, 202, 404, 808, 1616, 3232, 6389, 12778, 25556, 51112, 102224, 204448, 645289, 1290578, 2581156, 5162312, 10324624, 20649248]

約数ペア:

[(1, 20649248), (2, 10324624), (4, 5162312), (8, 2581156), (16, 1290578), (32, 645289), (101, 204448), (202, 102224), (404, 51112), (808, 25556), (1616, 12778), (3232, 6389)]