28245580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{128389}}^1$

素因数の和:128409

約数の個数: 24

約数和(自身を含む): 64708560

約数和(自身を除く): 36462980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 128389, 256778, 513556, 641945, 1283890, 1412279, 2567780, 2824558, 5649116, 7061395, 14122790, 28245580]

約数ペア:

[(1, 28245580), (2, 14122790), (4, 7061395), (5, 5649116), (10, 2824558), (11, 2567780), (20, 1412279), (22, 1283890), (44, 641945), (55, 513556), (110, 256778), (220, 128389)]