278668840

素因数分解:

$2^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{36097}}^1$

素因数の和:36301

約数の個数: 32

約数和(自身を含む): 630271080

約数和(自身を除く): 351602240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 193, 386, 772, 965, 1544, 1930, 3860, 7720, 36097, 72194, 144388, 180485, 288776, 360970, 721940, 1443880, 6966721, 13933442, 27866884, 34833605, 55733768, 69667210, 139334420, 278668840]

約数ペア:

[(1, 278668840), (2, 139334420), (4, 69667210), (5, 55733768), (8, 34833605), (10, 27866884), (20, 13933442), (40, 6966721), (193, 1443880), (386, 721940), (772, 360970), (965, 288776), (1544, 180485), (1930, 144388), (3860, 72194), (7720, 36097)]