81285738

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^2\times {\mathrm{431}}^1$

素因数の和:539

約数の個数: 48

約数和(自身を含む): 176639616

約数和(自身を除く): 95353878

約数列:

[1, 2, 3, 6, 17, 34, 43, 51, 86, 102, 129, 258, 431, 731, 862, 1293, 1462, 1849, 2193, 2586, 3698, 4386, 5547, 7327, 11094, 14654, 18533, 21981, 31433, 37066, 43962, 55599, 62866, 94299, 111198, 188598, 315061, 630122, 796919, 945183, 1593838, 1890366, 2390757, 4781514, 13547623, 27095246, 40642869, 81285738]

約数ペア:

[(1, 81285738), (2, 40642869), (3, 27095246), (6, 13547623), (17, 4781514), (34, 2390757), (43, 1890366), (51, 1593838), (86, 945183), (102, 796919), (129, 630122), (258, 315061), (431, 188598), (731, 111198), (862, 94299), (1293, 62866), (1462, 55599), (1849, 43962), (2193, 37066), (2586, 31433), (3698, 21981), (4386, 18533), (5547, 14654), (7327, 11094)]