126568520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{243401}}^1$

素因数の和:243425

約数の個数: 32

約数和(自身を含む): 306686520

約数和(自身を除く): 180118000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 243401, 486802, 973604, 1217005, 1947208, 2434010, 3164213, 4868020, 6328426, 9736040, 12656852, 15821065, 25313704, 31642130, 63284260, 126568520]

約数ペア:

[(1, 126568520), (2, 63284260), (4, 31642130), (5, 25313704), (8, 15821065), (10, 12656852), (13, 9736040), (20, 6328426), (26, 4868020), (40, 3164213), (52, 2434010), (65, 1947208), (104, 1217005), (130, 973604), (260, 486802), (520, 243401)]