256561488

素因数分解:

$2^4\times 3^2\times {\mathrm{1781677}}^1$

素因数の和:1781691

約数の個数: 30

約数和(自身を含む): 718016234

約数和(自身を除く): 461454746

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 1781677, 3563354, 5345031, 7126708, 10690062, 14253416, 16035093, 21380124, 28506832, 32070186, 42760248, 64140372, 85520496, 128280744, 256561488]

約数ペア:

[(1, 256561488), (2, 128280744), (3, 85520496), (4, 64140372), (6, 42760248), (8, 32070186), (9, 28506832), (12, 21380124), (16, 16035093), (18, 14253416), (24, 10690062), (36, 7126708), (48, 5345031), (72, 3563354), (144, 1781677)]