491291245

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{641}}^1$

素因数の和:861

約数の個数: 32

約数和(自身を含む): 639000576

約数和(自身を除く): 147709331

約数列:

[1, 5, 17, 71, 85, 127, 355, 635, 641, 1207, 2159, 3205, 6035, 9017, 10795, 10897, 45085, 45511, 54485, 81407, 153289, 227555, 407035, 766445, 773687, 1383919, 3868435, 5779897, 6919595, 28899485, 98258249, 491291245]

約数ペア:

[(1, 491291245), (5, 98258249), (17, 28899485), (71, 6919595), (85, 5779897), (127, 3868435), (355, 1383919), (635, 773687), (641, 766445), (1207, 407035), (2159, 227555), (3205, 153289), (6035, 81407), (9017, 54485), (10795, 45511), (10897, 45085)]