128641136

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{1951}}^1$

素因数の和:2289

約数の個数: 40

約数和(自身を含む): 269399424

約数和(自身を除く): 140758288

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 317, 634, 1268, 1951, 2536, 3902, 4121, 5072, 7804, 8242, 15608, 16484, 25363, 31216, 32968, 50726, 65936, 101452, 202904, 405808, 618467, 1236934, 2473868, 4947736, 8040071, 9895472, 16080142, 32160284, 64320568, 128641136]

約数ペア:

[(1, 128641136), (2, 64320568), (4, 32160284), (8, 16080142), (13, 9895472), (16, 8040071), (26, 4947736), (52, 2473868), (104, 1236934), (208, 618467), (317, 405808), (634, 202904), (1268, 101452), (1951, 65936), (2536, 50726), (3902, 32968), (4121, 31216), (5072, 25363), (7804, 16484), (8242, 15608)]