20486120

素因数分解:

$2^3\times 5^1\times {\mathrm{673}}^1\times {\mathrm{761}}^1$

素因数の和:1445

約数の個数: 32

約数和(自身を含む): 46222920

約数和(自身を除く): 25736800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 673, 761, 1346, 1522, 2692, 3044, 3365, 3805, 5384, 6088, 6730, 7610, 13460, 15220, 26920, 30440, 512153, 1024306, 2048612, 2560765, 4097224, 5121530, 10243060, 20486120]

約数ペア:

[(1, 20486120), (2, 10243060), (4, 5121530), (5, 4097224), (8, 2560765), (10, 2048612), (20, 1024306), (40, 512153), (673, 30440), (761, 26920), (1346, 15220), (1522, 13460), (2692, 7610), (3044, 6730), (3365, 6088), (3805, 5384)]