77890845

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{613}}^1$

素因数の和:861

約数の個数: 32

約数和(自身を含む): 128380032

約数和(自身を除く): 50489187

約数列:

[1, 3, 5, 15, 43, 129, 197, 215, 591, 613, 645, 985, 1839, 2955, 3065, 8471, 9195, 25413, 26359, 42355, 79077, 120761, 127065, 131795, 362283, 395385, 603805, 1811415, 5192723, 15578169, 25963615, 77890845]

約数ペア:

[(1, 77890845), (3, 25963615), (5, 15578169), (15, 5192723), (43, 1811415), (129, 603805), (197, 395385), (215, 362283), (591, 131795), (613, 127065), (645, 120761), (985, 79077), (1839, 42355), (2955, 26359), (3065, 25413), (8471, 9195)]