81526940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{5531}}^1$

素因数の和:5618

約数の個数: 48

約数和(自身を含む): 189592704

約数和(自身を除く): 108065764

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 67, 110, 134, 220, 268, 335, 670, 737, 1340, 1474, 2948, 3685, 5531, 7370, 11062, 14740, 22124, 27655, 55310, 60841, 110620, 121682, 243364, 304205, 370577, 608410, 741154, 1216820, 1482308, 1852885, 3705770, 4076347, 7411540, 8152694, 16305388, 20381735, 40763470, 81526940]

約数ペア:

[(1, 81526940), (2, 40763470), (4, 20381735), (5, 16305388), (10, 8152694), (11, 7411540), (20, 4076347), (22, 3705770), (44, 1852885), (55, 1482308), (67, 1216820), (110, 741154), (134, 608410), (220, 370577), (268, 304205), (335, 243364), (670, 121682), (737, 110620), (1340, 60841), (1474, 55310), (2948, 27655), (3685, 22124), (5531, 14740), (7370, 11062)]