154203820

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{55469}}^1$

素因数の和:55617

約数の個数: 24

約数和(自身を含む): 326163600

約数和(自身を除く): 171959780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 55469, 110938, 221876, 277345, 554690, 1109380, 7710191, 15420382, 30840764, 38550955, 77101910, 154203820]

約数ペア:

[(1, 154203820), (2, 77101910), (4, 38550955), (5, 30840764), (10, 15420382), (20, 7710191), (139, 1109380), (278, 554690), (556, 277345), (695, 221876), (1390, 110938), (2780, 55469)]