66721228

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{647}}^1$

素因数の和:814

約数の個数: 48

約数和(自身を含む): 139345920

約数和(自身を除く): 72624692

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 127, 203, 254, 406, 508, 647, 812, 889, 1294, 1778, 2588, 3556, 3683, 4529, 7366, 9058, 14732, 18116, 18763, 25781, 37526, 51562, 75052, 82169, 103124, 131341, 164338, 262682, 328676, 525364, 575183, 1150366, 2300732, 2382901, 4765802, 9531604, 16680307, 33360614, 66721228]

約数ペア:

[(1, 66721228), (2, 33360614), (4, 16680307), (7, 9531604), (14, 4765802), (28, 2382901), (29, 2300732), (58, 1150366), (116, 575183), (127, 525364), (203, 328676), (254, 262682), (406, 164338), (508, 131341), (647, 103124), (812, 82169), (889, 75052), (1294, 51562), (1778, 37526), (2588, 25781), (3556, 18763), (3683, 18116), (4529, 14732), (7366, 9058)]