2158340

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{347}}^1$

素因数の和:667

約数の個数: 24

約数和(自身を含む): 4560192

約数和(自身を除く): 2401852

約数列:

[1, 2, 4, 5, 10, 20, 311, 347, 622, 694, 1244, 1388, 1555, 1735, 3110, 3470, 6220, 6940, 107917, 215834, 431668, 539585, 1079170, 2158340]

約数ペア:

[(1, 2158340), (2, 1079170), (4, 539585), (5, 431668), (10, 215834), (20, 107917), (311, 6940), (347, 6220), (622, 3470), (694, 3110), (1244, 1735), (1388, 1555)]