865729540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{256133}}^1$

素因数の和:256168

約数の個数: 36

約数和(自身を含む): 1968645924

約数和(自身を除く): 1102916384

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 256133, 512266, 1024532, 1280665, 2561330, 3329729, 5122660, 6659458, 13318916, 16648645, 33297290, 43286477, 66594580, 86572954, 173145908, 216432385, 432864770, 865729540]

約数ペア:

[(1, 865729540), (2, 432864770), (4, 216432385), (5, 173145908), (10, 86572954), (13, 66594580), (20, 43286477), (26, 33297290), (52, 16648645), (65, 13318916), (130, 6659458), (169, 5122660), (260, 3329729), (338, 2561330), (676, 1280665), (845, 1024532), (1690, 512266), (3380, 256133)]