20620960

素因数分解:

$2^5\times 5^1\times {\mathrm{359}}^2$

素因数の和:733

約数の個数: 36

約数和(自身を含む): 48853098

約数和(自身を除く): 28232138

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 359, 718, 1436, 1795, 2872, 3590, 5744, 7180, 11488, 14360, 28720, 57440, 128881, 257762, 515524, 644405, 1031048, 1288810, 2062096, 2577620, 4124192, 5155240, 10310480, 20620960]

約数ペア:

[(1, 20620960), (2, 10310480), (4, 5155240), (5, 4124192), (8, 2577620), (10, 2062096), (16, 1288810), (20, 1031048), (32, 644405), (40, 515524), (80, 257762), (160, 128881), (359, 57440), (718, 28720), (1436, 14360), (1795, 11488), (2872, 7180), (3590, 5744)]