28111490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{6907}}^1$

素因数の和:6962

約数の個数: 32

約数和(自身を含む): 56700864

約数和(自身を除く): 28589374

約数列:

[1, 2, 5, 10, 11, 22, 37, 55, 74, 110, 185, 370, 407, 814, 2035, 4070, 6907, 13814, 34535, 69070, 75977, 151954, 255559, 379885, 511118, 759770, 1277795, 2555590, 2811149, 5622298, 14055745, 28111490]

約数ペア:

[(1, 28111490), (2, 14055745), (5, 5622298), (10, 2811149), (11, 2555590), (22, 1277795), (37, 759770), (55, 511118), (74, 379885), (110, 255559), (185, 151954), (370, 75977), (407, 69070), (814, 34535), (2035, 13814), (4070, 6907)]