1640597959

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{12323}}^1$

素因数の和:12380

約数の個数: 48

約数和(自身を含む): 2360292480

約数和(自身を除く): 719694521

約数列:

[1, 7, 11, 13, 19, 49, 77, 91, 133, 143, 209, 247, 539, 637, 931, 1001, 1463, 1729, 2717, 7007, 10241, 12103, 12323, 19019, 86261, 133133, 135553, 160199, 234137, 603827, 948871, 1121393, 1638959, 1762189, 2575507, 3043781, 6642097, 7849751, 11472713, 12335323, 18028549, 21306467, 33481591, 86347261, 126199843, 149145269, 234371137, 1640597959]

約数ペア:

[(1, 1640597959), (7, 234371137), (11, 149145269), (13, 126199843), (19, 86347261), (49, 33481591), (77, 21306467), (91, 18028549), (133, 12335323), (143, 11472713), (209, 7849751), (247, 6642097), (539, 3043781), (637, 2575507), (931, 1762189), (1001, 1638959), (1463, 1121393), (1729, 948871), (2717, 603827), (7007, 234137), (10241, 160199), (12103, 135553), (12323, 133133), (19019, 86261)]