81107425

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{199}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 123206400

約数和(自身を除く): 42098975

約数列:

[1, 5, 7, 17, 25, 35, 85, 119, 137, 175, 199, 425, 595, 685, 959, 995, 1393, 2329, 2975, 3383, 3425, 4795, 4975, 6965, 11645, 16303, 16915, 23681, 23975, 27263, 34825, 58225, 81515, 84575, 118405, 136315, 190841, 407575, 463471, 592025, 681575, 954205, 2317355, 3244297, 4771025, 11586775, 16221485, 81107425]

約数ペア:

[(1, 81107425), (5, 16221485), (7, 11586775), (17, 4771025), (25, 3244297), (35, 2317355), (85, 954205), (119, 681575), (137, 592025), (175, 463471), (199, 407575), (425, 190841), (595, 136315), (685, 118405), (959, 84575), (995, 81515), (1393, 58225), (2329, 34825), (2975, 27263), (3383, 23975), (3425, 23681), (4795, 16915), (4975, 16303), (6965, 11645)]