20755480

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3733}}^1$

素因数の和:3883

約数の個数: 32

約数和(自身を含む): 47048400

約数和(自身を除く): 26292920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 3733, 5560, 7466, 14932, 18665, 29864, 37330, 74660, 149320, 518887, 1037774, 2075548, 2594435, 4151096, 5188870, 10377740, 20755480]

約数ペア:

[(1, 20755480), (2, 10377740), (4, 5188870), (5, 4151096), (8, 2594435), (10, 2075548), (20, 1037774), (40, 518887), (139, 149320), (278, 74660), (556, 37330), (695, 29864), (1112, 18665), (1390, 14932), (2780, 7466), (3733, 5560)]