991739780

素因数分解:

$2^2\times 5^1\times {\mathrm{1487}}^1\times {\mathrm{33347}}^1$

素因数の和:34843

約数の個数: 24

約数和(自身を含む): 2084116608

約数和(自身を除く): 1092376828

約数列:

[1, 2, 4, 5, 10, 20, 1487, 2974, 5948, 7435, 14870, 29740, 33347, 66694, 133388, 166735, 333470, 666940, 49586989, 99173978, 198347956, 247934945, 495869890, 991739780]

約数ペア:

[(1, 991739780), (2, 495869890), (4, 247934945), (5, 198347956), (10, 99173978), (20, 49586989), (1487, 666940), (2974, 333470), (5948, 166735), (7435, 133388), (14870, 66694), (29740, 33347)]