28279867825

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{383}}^1\times {\mathrm{268501}}^1$

素因数の和:268905

約数の個数: 24

約数和(自身を含む): 38354973696

約数和(自身を除く): 10075105871

約数列:

[1, 5, 11, 25, 55, 275, 383, 1915, 4213, 9575, 21065, 105325, 268501, 1342505, 2953511, 6712525, 14767555, 73837775, 102835883, 514179415, 1131194713, 2570897075, 5655973565, 28279867825]

約数ペア:

[(1, 28279867825), (5, 5655973565), (11, 2570897075), (25, 1131194713), (55, 514179415), (275, 102835883), (383, 73837775), (1915, 14767555), (4213, 6712525), (9575, 2953511), (21065, 1342505), (105325, 268501)]