25771850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1279}}^1$

素因数の和:1335

約数の個数: 48

約数和(自身を含む): 53329920

約数和(自身を除く): 27558070

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 310, 325, 403, 650, 775, 806, 1279, 1550, 2015, 2558, 4030, 6395, 10075, 12790, 16627, 20150, 31975, 33254, 39649, 63950, 79298, 83135, 166270, 198245, 396490, 415675, 515437, 831350, 991225, 1030874, 1982450, 2577185, 5154370, 12885925, 25771850]

約数ペア:

[(1, 25771850), (2, 12885925), (5, 5154370), (10, 2577185), (13, 1982450), (25, 1030874), (26, 991225), (31, 831350), (50, 515437), (62, 415675), (65, 396490), (130, 198245), (155, 166270), (310, 83135), (325, 79298), (403, 63950), (650, 39649), (775, 33254), (806, 31975), (1279, 20150), (1550, 16627), (2015, 12790), (2558, 10075), (4030, 6395)]