1581020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{491}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 3967488

約数和(自身を除く): 2386468

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 491, 644, 805, 982, 1610, 1964, 2455, 3220, 3437, 4910, 6874, 9820, 11293, 13748, 17185, 22586, 34370, 45172, 56465, 68740, 79051, 112930, 158102, 225860, 316204, 395255, 790510, 1581020]

約数ペア:

[(1, 1581020), (2, 790510), (4, 395255), (5, 316204), (7, 225860), (10, 158102), (14, 112930), (20, 79051), (23, 68740), (28, 56465), (35, 45172), (46, 34370), (70, 22586), (92, 17185), (115, 13748), (140, 11293), (161, 9820), (230, 6874), (322, 4910), (460, 3437), (491, 3220), (644, 2455), (805, 1964), (982, 1610)]