135220420

素因数分解:

$2^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{13883}}^1$

素因数の和:14379

約数の個数: 24

約数和(自身を含む): 284566464

約数和(自身を除く): 149346044

約数列:

[1, 2, 4, 5, 10, 20, 487, 974, 1948, 2435, 4870, 9740, 13883, 27766, 55532, 69415, 138830, 277660, 6761021, 13522042, 27044084, 33805105, 67610210, 135220420]

約数ペア:

[(1, 135220420), (2, 67610210), (4, 33805105), (5, 27044084), (10, 13522042), (20, 6761021), (487, 277660), (974, 138830), (1948, 69415), (2435, 55532), (4870, 27766), (9740, 13883)]