1640642738

素因数分解:

$2^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{373}}^1\times {\mathrm{1489}}^1$

素因数の和:2082

約数の個数: 32

約数和(自身を含む): 2835338880

約数和(自身を除く): 1194696142

約数列:

[1, 2, 7, 14, 211, 373, 422, 746, 1477, 1489, 2611, 2954, 2978, 5222, 10423, 20846, 78703, 157406, 314179, 550921, 555397, 628358, 1101842, 1110794, 2199253, 3887779, 4398506, 7775558, 117188767, 234377534, 820321369, 1640642738]

約数ペア:

[(1, 1640642738), (2, 820321369), (7, 234377534), (14, 117188767), (211, 7775558), (373, 4398506), (422, 3887779), (746, 2199253), (1477, 1110794), (1489, 1101842), (2611, 628358), (2954, 555397), (2978, 550921), (5222, 314179), (10423, 157406), (20846, 78703)]