81508784

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{38303}}^1$

素因数の和:38337

約数の個数: 40

約数和(自身を含む): 189987840

約数和(自身を除く): 108479056

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 38303, 76606, 153212, 268121, 306424, 536242, 612848, 727757, 1072484, 1455514, 2144968, 2911028, 4289936, 5094299, 5822056, 10188598, 11644112, 20377196, 40754392, 81508784]

約数ペア:

[(1, 81508784), (2, 40754392), (4, 20377196), (7, 11644112), (8, 10188598), (14, 5822056), (16, 5094299), (19, 4289936), (28, 2911028), (38, 2144968), (56, 1455514), (76, 1072484), (112, 727757), (133, 612848), (152, 536242), (266, 306424), (304, 268121), (532, 153212), (1064, 76606), (2128, 38303)]