19609940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{140071}}^1$

素因数の和:140087

約数の個数: 24

約数和(自身を含む): 47064192

約数和(自身を除く): 27454252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 140071, 280142, 560284, 700355, 980497, 1400710, 1960994, 2801420, 3921988, 4902485, 9804970, 19609940]

約数ペア:

[(1, 19609940), (2, 9804970), (4, 4902485), (5, 3921988), (7, 2801420), (10, 1960994), (14, 1400710), (20, 980497), (28, 700355), (35, 560284), (70, 280142), (140, 140071)]