20531960

素因数分解:

$2^3\times 5^1\times {\mathrm{233}}^1\times {\mathrm{2203}}^1$

素因数の和:2447

約数の個数: 32

約数和(自身を含む): 46416240

約数和(自身を除く): 25884280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 233, 466, 932, 1165, 1864, 2203, 2330, 4406, 4660, 8812, 9320, 11015, 17624, 22030, 44060, 88120, 513299, 1026598, 2053196, 2566495, 4106392, 5132990, 10265980, 20531960]

約数ペア:

[(1, 20531960), (2, 10265980), (4, 5132990), (5, 4106392), (8, 2566495), (10, 2053196), (20, 1026598), (40, 513299), (233, 88120), (466, 44060), (932, 22030), (1165, 17624), (1864, 11015), (2203, 9320), (2330, 8812), (4406, 4660)]