53138780

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{13487}}^1$

素因数の和:13693

約数の個数: 24

約数和(自身を含む): 112166208

約数和(自身を除く): 59027428

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 13487, 26974, 53948, 67435, 134870, 269740, 2656939, 5313878, 10627756, 13284695, 26569390, 53138780]

約数ペア:

[(1, 53138780), (2, 26569390), (4, 13284695), (5, 10627756), (10, 5313878), (20, 2656939), (197, 269740), (394, 134870), (788, 67435), (985, 53948), (1970, 26974), (3940, 13487)]