199987568

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{569}}^1\times {\mathrm{1997}}^1$

素因数の和:2585

約数の個数: 40

約数和(自身を含む): 423655920

約数和(自身を除く): 223668352

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 569, 1138, 1997, 2276, 3994, 4552, 6259, 7988, 9104, 12518, 15976, 21967, 25036, 31952, 43934, 50072, 87868, 100144, 175736, 351472, 1136293, 2272586, 4545172, 9090344, 12499223, 18180688, 24998446, 49996892, 99993784, 199987568]

約数ペア:

[(1, 199987568), (2, 99993784), (4, 49996892), (8, 24998446), (11, 18180688), (16, 12499223), (22, 9090344), (44, 4545172), (88, 2272586), (176, 1136293), (569, 351472), (1138, 175736), (1997, 100144), (2276, 87868), (3994, 50072), (4552, 43934), (6259, 31952), (7988, 25036), (9104, 21967), (12518, 15976)]