2561139184

素因数分解:

$2^4\times {\mathrm{503}}^1\times {\mathrm{318233}}^1$

素因数の和:318744

約数の個数: 20

約数和(自身を含む): 4972088016

約数和(自身を除く): 2410948832

約数列:

[1, 2, 4, 8, 16, 503, 1006, 2012, 4024, 8048, 318233, 636466, 1272932, 2545864, 5091728, 160071199, 320142398, 640284796, 1280569592, 2561139184]

約数ペア:

[(1, 2561139184), (2, 1280569592), (4, 640284796), (8, 320142398), (16, 160071199), (503, 5091728), (1006, 2545864), (2012, 1272932), (4024, 636466), (8048, 318233)]