138889316

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{641}}^1\times {\mathrm{2851}}^1$

素因数の和:3515

約数の個数: 24

約数和(自身を含む): 256337760

約数和(自身を除く): 117448444

約数列:

[1, 2, 4, 19, 38, 76, 641, 1282, 2564, 2851, 5702, 11404, 12179, 24358, 48716, 54169, 108338, 216676, 1827491, 3654982, 7309964, 34722329, 69444658, 138889316]

約数ペア:

[(1, 138889316), (2, 69444658), (4, 34722329), (19, 7309964), (38, 3654982), (76, 1827491), (641, 216676), (1282, 108338), (2564, 54169), (2851, 48716), (5702, 24358), (11404, 12179)]