21923080

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3943}}^1$

素因数の和:4093

約数の個数: 32

約数和(自身を含む): 49694400

約数和(自身を除く): 27771320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 3943, 5560, 7886, 15772, 19715, 31544, 39430, 78860, 157720, 548077, 1096154, 2192308, 2740385, 4384616, 5480770, 10961540, 21923080]

約数ペア:

[(1, 21923080), (2, 10961540), (4, 5480770), (5, 4384616), (8, 2740385), (10, 2192308), (20, 1096154), (40, 548077), (139, 157720), (278, 78860), (556, 39430), (695, 31544), (1112, 19715), (1390, 15772), (2780, 7886), (3943, 5560)]