3780451340

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{294887}}^1$

素因数の和:295537

約数の個数: 24

約数和(自身を含む): 7951360032

約数和(自身を除く): 4170908692

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2564, 3205, 6410, 12820, 294887, 589774, 1179548, 1474435, 2948870, 5897740, 189022567, 378045134, 756090268, 945112835, 1890225670, 3780451340]

約数ペア:

[(1, 3780451340), (2, 1890225670), (4, 945112835), (5, 756090268), (10, 378045134), (20, 189022567), (641, 5897740), (1282, 2948870), (2564, 1474435), (3205, 1179548), (6410, 589774), (12820, 294887)]