634657828

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{647}}^1\times {\mathrm{661}}^1$

素因数の和:1372

約数の個数: 48

約数和(自身を含む): 1297223424

約数和(自身を除く): 662565596

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 212, 371, 647, 661, 742, 1294, 1322, 1484, 2588, 2644, 4529, 4627, 9058, 9254, 18116, 18508, 34291, 35033, 68582, 70066, 137164, 140132, 240037, 245231, 427667, 480074, 490462, 855334, 960148, 980924, 1710668, 2993669, 5987338, 11974676, 22666351, 45332702, 90665404, 158664457, 317328914, 634657828]

約数ペア:

[(1, 634657828), (2, 317328914), (4, 158664457), (7, 90665404), (14, 45332702), (28, 22666351), (53, 11974676), (106, 5987338), (212, 2993669), (371, 1710668), (647, 980924), (661, 960148), (742, 855334), (1294, 490462), (1322, 480074), (1484, 427667), (2588, 245231), (2644, 240037), (4529, 140132), (4627, 137164), (9058, 70066), (9254, 68582), (18116, 35033), (18508, 34291)]