640247486512

素因数分解:

$2^4\times {\mathrm{641}}^1\times {\mathrm{62426627}}^1$

素因数の和:62427276

約数の個数: 20

約数和(自身を含む): 1242414750456

約数和(自身を除く): 602167263944

約数列:

[1, 2, 4, 8, 16, 641, 1282, 2564, 5128, 10256, 62426627, 124853254, 249706508, 499413016, 998826032, 40015467907, 80030935814, 160061871628, 320123743256, 640247486512]

約数ペア:

[(1, 640247486512), (2, 320123743256), (4, 160061871628), (8, 80030935814), (16, 40015467907), (641, 998826032), (1282, 499413016), (2564, 249706508), (5128, 124853254), (10256, 62426627)]