1681743920

素因数分解:

$2^4\times 5^1\times {\mathrm{21021799}}^1$

素因数の和:21021812

約数の個数: 20

約数和(自身を含む): 3910054800

約数和(自身を除く): 2228310880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 21021799, 42043598, 84087196, 105108995, 168174392, 210217990, 336348784, 420435980, 840871960, 1681743920]

約数ペア:

[(1, 1681743920), (2, 840871960), (4, 420435980), (5, 336348784), (8, 210217990), (10, 168174392), (16, 105108995), (20, 84087196), (40, 42043598), (80, 21021799)]