64178387

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{389}}^1$

素因数の和:460

約数の個数: 32

約数和(自身を含む): 82992000

約数和(自身を除く): 18813613

約数列:

[1, 7, 13, 37, 49, 91, 259, 343, 389, 481, 637, 1813, 2723, 3367, 4459, 5057, 12691, 14393, 19061, 23569, 35399, 100751, 133427, 164983, 187109, 247793, 705257, 1309763, 1734551, 4936799, 9168341, 64178387]

約数ペア:

[(1, 64178387), (7, 9168341), (13, 4936799), (37, 1734551), (49, 1309763), (91, 705257), (259, 247793), (343, 187109), (389, 164983), (481, 133427), (637, 100751), (1813, 35399), (2723, 23569), (3367, 19061), (4459, 14393), (5057, 12691)]