71738620

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{83417}}^1$

素因数の和:83469

約数の個数: 24

約数和(自身を含む): 154156464

約数和(自身を除く): 82417844

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 83417, 166834, 333668, 417085, 834170, 1668340, 3586931, 7173862, 14347724, 17934655, 35869310, 71738620]

約数ペア:

[(1, 71738620), (2, 35869310), (4, 17934655), (5, 14347724), (10, 7173862), (20, 3586931), (43, 1668340), (86, 834170), (172, 417085), (215, 333668), (430, 166834), (860, 83417)]