67280178889

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1237}}^1\times {\mathrm{16427}}^1$

素因数の和:17725

約数の個数: 32

約数和(自身を含む): 85907137536

約数和(自身を除く): 18626958647

約数列:

[1, 7, 11, 43, 77, 301, 473, 1237, 3311, 8659, 13607, 16427, 53191, 95249, 114989, 180697, 372337, 585101, 706361, 1264879, 4095707, 4944527, 7769971, 20320199, 54389797, 142241393, 223522189, 873768557, 1564655323, 6116379899, 9611454127, 67280178889]

約数ペア:

[(1, 67280178889), (7, 9611454127), (11, 6116379899), (43, 1564655323), (77, 873768557), (301, 223522189), (473, 142241393), (1237, 54389797), (3311, 20320199), (8659, 7769971), (13607, 4944527), (16427, 4095707), (53191, 1264879), (95249, 706361), (114989, 585101), (180697, 372337)]