1668784

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:205

約数の個数: 40

約数和(自身を含む): 3562272

約数和(自身を除く): 1893488

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 71, 104, 113, 142, 208, 226, 284, 452, 568, 904, 923, 1136, 1469, 1808, 1846, 2938, 3692, 5876, 7384, 8023, 11752, 14768, 16046, 23504, 32092, 64184, 104299, 128368, 208598, 417196, 834392, 1668784]

約数ペア:

[(1, 1668784), (2, 834392), (4, 417196), (8, 208598), (13, 128368), (16, 104299), (26, 64184), (52, 32092), (71, 23504), (104, 16046), (113, 14768), (142, 11752), (208, 8023), (226, 7384), (284, 5876), (452, 3692), (568, 2938), (904, 1846), (923, 1808), (1136, 1469)]