81190772

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{21991}}^1$

素因数の和:22079

約数の個数: 24

約数和(自身を含む): 155175552

約数和(自身を除く): 73984780

約数列:

[1, 2, 4, 13, 26, 52, 71, 142, 284, 923, 1846, 3692, 21991, 43982, 87964, 285883, 571766, 1143532, 1561361, 3122722, 6245444, 20297693, 40595386, 81190772]

約数ペア:

[(1, 81190772), (2, 40595386), (4, 20297693), (13, 6245444), (26, 3122722), (52, 1561361), (71, 1143532), (142, 571766), (284, 285883), (923, 87964), (1846, 43982), (3692, 21991)]