996380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{647}}^1$

素因数の和:674

約数の個数: 48

約数和(自身を含む): 2612736

約数和(自身を除く): 1616356

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 647, 770, 1294, 1540, 2588, 3235, 4529, 6470, 7117, 9058, 12940, 14234, 18116, 22645, 28468, 35585, 45290, 49819, 71170, 90580, 99638, 142340, 199276, 249095, 498190, 996380]

約数ペア:

[(1, 996380), (2, 498190), (4, 249095), (5, 199276), (7, 142340), (10, 99638), (11, 90580), (14, 71170), (20, 49819), (22, 45290), (28, 35585), (35, 28468), (44, 22645), (55, 18116), (70, 14234), (77, 12940), (110, 9058), (140, 7117), (154, 6470), (220, 4529), (308, 3235), (385, 2588), (647, 1540), (770, 1294)]