638671132

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{3967}}^1\times {\mathrm{3659}}^1$

素因数の和:7641

約数の個数: 24

約数和(自身を含む): 1219921920

約数和(自身を除く): 581250788

約数列:

[1, 2, 4, 11, 22, 44, 3659, 3967, 7318, 7934, 14636, 15868, 40249, 43637, 80498, 87274, 160996, 174548, 14515253, 29030506, 58061012, 159667783, 319335566, 638671132]

約数ペア:

[(1, 638671132), (2, 319335566), (4, 159667783), (11, 58061012), (22, 29030506), (44, 14515253), (3659, 174548), (3967, 160996), (7318, 87274), (7934, 80498), (14636, 43637), (15868, 40249)]