638360968

素因数分解:

$2^3\times 7^1\times {\mathrm{83}}^1\times {\mathrm{137341}}^1$

素因数の和:137437

約数の個数: 32

約数和(自身を含む): 1384407360

約数和(自身を除く): 746046392

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 83, 166, 332, 581, 664, 1162, 2324, 4648, 137341, 274682, 549364, 961387, 1098728, 1922774, 3845548, 7691096, 11399303, 22798606, 45597212, 79795121, 91194424, 159590242, 319180484, 638360968]

約数ペア:

[(1, 638360968), (2, 319180484), (4, 159590242), (7, 91194424), (8, 79795121), (14, 45597212), (28, 22798606), (56, 11399303), (83, 7691096), (166, 3845548), (332, 1922774), (581, 1098728), (664, 961387), (1162, 549364), (2324, 274682), (4648, 137341)]