64693180

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{33347}}^1$

素因数の和:33453

約数の個数: 24

約数和(自身を含む): 137260368

約数和(自身を除く): 72567188

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 33347, 66694, 133388, 166735, 333470, 666940, 3234659, 6469318, 12938636, 16173295, 32346590, 64693180]

約数ペア:

[(1, 64693180), (2, 32346590), (4, 16173295), (5, 12938636), (10, 6469318), (20, 3234659), (97, 666940), (194, 333470), (388, 166735), (485, 133388), (970, 66694), (1940, 33347)]