128851775

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{449}}^1\times {\mathrm{883}}^1$

素因数の和:1355

約数の個数: 24

約数和(自身を含む): 172645200

約数和(自身を除く): 43793425

約数列:

[1, 5, 13, 25, 65, 325, 449, 883, 2245, 4415, 5837, 11225, 11479, 22075, 29185, 57395, 145925, 286975, 396467, 1982335, 5154071, 9911675, 25770355, 128851775]

約数ペア:

[(1, 128851775), (5, 25770355), (13, 9911675), (25, 5154071), (65, 1982335), (325, 396467), (449, 286975), (883, 145925), (2245, 57395), (4415, 29185), (5837, 22075), (11225, 11479)]