18877100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{131}}^2$

素因数の和:287

約数の個数: 54

約数和(自身を含む): 45030972

約数和(自身を除く): 26153872

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 131, 220, 262, 275, 524, 550, 655, 1100, 1310, 1441, 2620, 2882, 3275, 5764, 6550, 7205, 13100, 14410, 17161, 28820, 34322, 36025, 68644, 72050, 85805, 144100, 171610, 188771, 343220, 377542, 429025, 755084, 858050, 943855, 1716100, 1887710, 3775420, 4719275, 9438550, 18877100]

約数ペア:

[(1, 18877100), (2, 9438550), (4, 4719275), (5, 3775420), (10, 1887710), (11, 1716100), (20, 943855), (22, 858050), (25, 755084), (44, 429025), (50, 377542), (55, 343220), (100, 188771), (110, 171610), (131, 144100), (220, 85805), (262, 72050), (275, 68644), (524, 36025), (550, 34322), (655, 28820), (1100, 17161), (1310, 14410), (1441, 13100), (2620, 7205), (2882, 6550), (3275, 5764)]