647535256

素因数分解:

$2^3\times {\mathrm{991}}^1\times {\mathrm{81677}}^1$

素因数の和:82674

約数の個数: 16

約数和(自身を含む): 1215368640

約数和(自身を除く): 567833384

約数列:

[1, 2, 4, 8, 991, 1982, 3964, 7928, 81677, 163354, 326708, 653416, 80941907, 161883814, 323767628, 647535256]

約数ペア:

[(1, 647535256), (2, 323767628), (4, 161883814), (8, 80941907), (991, 653416), (1982, 326708), (3964, 163354), (7928, 81677)]