18975075

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{769}}^1$

素因数の和:836

約数の個数: 48

約数和(自身を含む): 36664320

約数和(自身を除く): 17689245

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 47, 75, 105, 141, 175, 235, 329, 525, 705, 769, 987, 1175, 1645, 2307, 3525, 3845, 4935, 5383, 8225, 11535, 16149, 19225, 24675, 26915, 36143, 57675, 80745, 108429, 134575, 180715, 253001, 403725, 542145, 759003, 903575, 1265005, 2710725, 3795015, 6325025, 18975075]

約数ペア:

[(1, 18975075), (3, 6325025), (5, 3795015), (7, 2710725), (15, 1265005), (21, 903575), (25, 759003), (35, 542145), (47, 403725), (75, 253001), (105, 180715), (141, 134575), (175, 108429), (235, 80745), (329, 57675), (525, 36143), (705, 26915), (769, 24675), (987, 19225), (1175, 16149), (1645, 11535), (2307, 8225), (3525, 5383), (3845, 4935)]