18257690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{191}}^1$

素因数の和:299

約数の個数: 48

約数和(自身を含む): 36771840

約数和(自身を除く): 18514150

約数列:

[1, 2, 5, 10, 11, 22, 55, 79, 110, 121, 158, 191, 242, 382, 395, 605, 790, 869, 955, 1210, 1738, 1910, 2101, 4202, 4345, 8690, 9559, 10505, 15089, 19118, 21010, 23111, 30178, 46222, 47795, 75445, 95590, 115555, 150890, 165979, 231110, 331958, 829895, 1659790, 1825769, 3651538, 9128845, 18257690]

約数ペア:

[(1, 18257690), (2, 9128845), (5, 3651538), (10, 1825769), (11, 1659790), (22, 829895), (55, 331958), (79, 231110), (110, 165979), (121, 150890), (158, 115555), (191, 95590), (242, 75445), (382, 47795), (395, 46222), (605, 30178), (790, 23111), (869, 21010), (955, 19118), (1210, 15089), (1738, 10505), (1910, 9559), (2101, 8690), (4202, 4345)]