18835745

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:257

約数の個数: 32

約数和(自身を含む): 25660800

約数和(自身を除く): 6825055

約数列:

[1, 5, 17, 19, 85, 95, 107, 109, 323, 535, 545, 1615, 1819, 1853, 2033, 2071, 9095, 9265, 10165, 10355, 11663, 34561, 35207, 58315, 172805, 176035, 198271, 221597, 991355, 1107985, 3767149, 18835745]

約数ペア:

[(1, 18835745), (5, 3767149), (17, 1107985), (19, 991355), (85, 221597), (95, 198271), (107, 176035), (109, 172805), (323, 58315), (535, 35207), (545, 34561), (1615, 11663), (1819, 10355), (1853, 10165), (2033, 9265), (2071, 9095)]