639771890

素因数分解:

$2^1\times 5^1\times {\mathrm{2341}}^1\times {\mathrm{27329}}^1$

素因数の和:29677

約数の個数: 16

約数和(自身を含む): 1152123480

約数和(自身を除く): 512351590

約数列:

[1, 2, 5, 10, 2341, 4682, 11705, 23410, 27329, 54658, 136645, 273290, 63977189, 127954378, 319885945, 639771890]

約数ペア:

[(1, 639771890), (2, 319885945), (5, 127954378), (10, 63977189), (2341, 273290), (4682, 136645), (11705, 54658), (23410, 27329)]