201939880

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{22639}}^1$

素因数の和:22873

約数の個数: 32

約数和(自身を含む): 456422400

約数和(自身を除く): 254482520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 4460, 8920, 22639, 45278, 90556, 113195, 181112, 226390, 452780, 905560, 5048497, 10096994, 20193988, 25242485, 40387976, 50484970, 100969940, 201939880]

約数ペア:

[(1, 201939880), (2, 100969940), (4, 50484970), (5, 40387976), (8, 25242485), (10, 20193988), (20, 10096994), (40, 5048497), (223, 905560), (446, 452780), (892, 226390), (1115, 181112), (1784, 113195), (2230, 90556), (4460, 45278), (8920, 22639)]