2689505

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1$

素因数の和:305

約数の個数: 32

約数和(自身を含む): 4161024

約数和(自身を除く): 1471519

約数列:

[1, 5, 7, 13, 23, 35, 65, 91, 115, 161, 257, 299, 455, 805, 1285, 1495, 1799, 2093, 3341, 5911, 8995, 10465, 16705, 23387, 29555, 41377, 76843, 116935, 206885, 384215, 537901, 2689505]

約数ペア:

[(1, 2689505), (5, 537901), (7, 384215), (13, 206885), (23, 116935), (35, 76843), (65, 41377), (91, 29555), (115, 23387), (161, 16705), (257, 10465), (299, 8995), (455, 5911), (805, 3341), (1285, 2093), (1495, 1799)]