261779968

素因数分解:

$2^9\times {\mathrm{511289}}^1$

素因数の和:511307

約数の個数: 20

約数和(自身を含む): 523049670

約数和(自身を除く): 261269702

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 511289, 1022578, 2045156, 4090312, 8180624, 16361248, 32722496, 65444992, 130889984, 261779968]

約数ペア:

[(1, 261779968), (2, 130889984), (4, 65444992), (8, 32722496), (16, 16361248), (32, 8180624), (64, 4090312), (128, 2045156), (256, 1022578), (512, 511289)]