263480420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{3833}}^1$

素因数の和:4340

約数の個数: 48

約数和(自身を含む): 633806208

約数和(自身を除く): 370325788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 491, 982, 1964, 2455, 3437, 3833, 4910, 6874, 7666, 9820, 13748, 15332, 17185, 19165, 26831, 34370, 38330, 53662, 68740, 76660, 107324, 134155, 268310, 536620, 1882003, 3764006, 7528012, 9410015, 13174021, 18820030, 26348042, 37640060, 52696084, 65870105, 131740210, 263480420]

約数ペア:

[(1, 263480420), (2, 131740210), (4, 65870105), (5, 52696084), (7, 37640060), (10, 26348042), (14, 18820030), (20, 13174021), (28, 9410015), (35, 7528012), (70, 3764006), (140, 1882003), (491, 536620), (982, 268310), (1964, 134155), (2455, 107324), (3437, 76660), (3833, 68740), (4910, 53662), (6874, 38330), (7666, 34370), (9820, 26831), (13748, 19165), (15332, 17185)]