2018749820

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{726169}}^1$

素因数の和:726317

約数の個数: 24

約数和(自身を含む): 4269879600

約数和(自身を除く): 2251129780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 726169, 1452338, 2904676, 3630845, 7261690, 14523380, 100937491, 201874982, 403749964, 504687455, 1009374910, 2018749820]

約数ペア:

[(1, 2018749820), (2, 1009374910), (4, 504687455), (5, 403749964), (10, 201874982), (20, 100937491), (139, 14523380), (278, 7261690), (556, 3630845), (695, 2904676), (1390, 1452338), (2780, 726169)]