67640140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109097}}^1$

素因数の和:109137

約数の個数: 24

約数和(自身を含む): 146627712

約数和(自身を除く): 78987572

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 109097, 218194, 436388, 545485, 1090970, 2181940, 3382007, 6764014, 13528028, 16910035, 33820070, 67640140]

約数ペア:

[(1, 67640140), (2, 33820070), (4, 16910035), (5, 13528028), (10, 6764014), (20, 3382007), (31, 2181940), (62, 1090970), (124, 545485), (155, 436388), (310, 218194), (620, 109097)]