20347865920

素因数分解:

$2^6\times 5^1\times {\mathrm{63587081}}^1$

素因数の和:63587098

約数の個数: 28

約数和(自身を含む): 48453356484

約数和(自身を除く): 28105490564

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 63587081, 127174162, 254348324, 317935405, 508696648, 635870810, 1017393296, 1271741620, 2034786592, 2543483240, 4069573184, 5086966480, 10173932960, 20347865920]

約数ペア:

[(1, 20347865920), (2, 10173932960), (4, 5086966480), (5, 4069573184), (8, 2543483240), (10, 2034786592), (16, 1271741620), (20, 1017393296), (32, 635870810), (40, 508696648), (64, 317935405), (80, 254348324), (160, 127174162), (320, 63587081)]