206405890

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{479}}^1\times {\mathrm{1051}}^1$

素因数の和:1578

約数の個数: 32

約数和(自身を含む): 381749760

約数和(自身を除く): 175343870

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 479, 958, 1051, 2102, 2395, 4790, 5255, 10510, 19639, 39278, 43091, 86182, 98195, 196390, 215455, 430910, 503429, 1006858, 2517145, 5034290, 20640589, 41281178, 103202945, 206405890]

約数ペア:

[(1, 206405890), (2, 103202945), (5, 41281178), (10, 20640589), (41, 5034290), (82, 2517145), (205, 1006858), (410, 503429), (479, 430910), (958, 215455), (1051, 196390), (2102, 98195), (2395, 86182), (4790, 43091), (5255, 39278), (10510, 19639)]