18439580

素因数分解:

$2^2\times 5^1\times {\mathrm{347}}^1\times {\mathrm{2657}}^1$

素因数の和:3013

約数の個数: 24

約数和(自身を含む): 38849328

約数和(自身を除く): 20409748

約数列:

[1, 2, 4, 5, 10, 20, 347, 694, 1388, 1735, 2657, 3470, 5314, 6940, 10628, 13285, 26570, 53140, 921979, 1843958, 3687916, 4609895, 9219790, 18439580]

約数ペア:

[(1, 18439580), (2, 9219790), (4, 4609895), (5, 3687916), (10, 1843958), (20, 921979), (347, 53140), (694, 26570), (1388, 13285), (1735, 10628), (2657, 6940), (3470, 5314)]