257465968

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{107}}^1\times {\mathrm{1489}}^1$

素因数の和:1705

約数の個数: 40

約数和(自身を含む): 508829040

約数和(自身を除く): 251363072

約数列:

[1, 2, 4, 8, 16, 101, 107, 202, 214, 404, 428, 808, 856, 1489, 1616, 1712, 2978, 5956, 10807, 11912, 21614, 23824, 43228, 86456, 150389, 159323, 172912, 300778, 318646, 601556, 637292, 1203112, 1274584, 2406224, 2549168, 16091623, 32183246, 64366492, 128732984, 257465968]

約数ペア:

[(1, 257465968), (2, 128732984), (4, 64366492), (8, 32183246), (16, 16091623), (101, 2549168), (107, 2406224), (202, 1274584), (214, 1203112), (404, 637292), (428, 601556), (808, 318646), (856, 300778), (1489, 172912), (1616, 159323), (1712, 150389), (2978, 86456), (5956, 43228), (10807, 23824), (11912, 21614)]