19549940

素因数分解:

$2^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{3607}}^1$

素因数の和:3887

約数の個数: 24

約数和(自身を含む): 41217792

約数和(自身を除く): 21667852

約数列:

[1, 2, 4, 5, 10, 20, 271, 542, 1084, 1355, 2710, 3607, 5420, 7214, 14428, 18035, 36070, 72140, 977497, 1954994, 3909988, 4887485, 9774970, 19549940]

約数ペア:

[(1, 19549940), (2, 9774970), (4, 4887485), (5, 3909988), (10, 1954994), (20, 977497), (271, 72140), (542, 36070), (1084, 18035), (1355, 14428), (2710, 7214), (3607, 5420)]