639821716

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{31223}}^1$

素因数の和:31383

約数の個数: 24

約数和(自身を含む): 1154039040

約数和(自身を除く): 514217324

約数列:

[1, 2, 4, 47, 94, 109, 188, 218, 436, 5123, 10246, 20492, 31223, 62446, 124892, 1467481, 2934962, 3403307, 5869924, 6806614, 13613228, 159955429, 319910858, 639821716]

約数ペア:

[(1, 639821716), (2, 319910858), (4, 159955429), (47, 13613228), (94, 6806614), (109, 5869924), (188, 3403307), (218, 2934962), (436, 1467481), (5123, 124892), (10246, 62446), (20492, 31223)]