2021759980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5320421}}^1$

素因数の和:5320449

約数の個数: 24

約数和(自身を含む): 4469154480

約数和(自身を除く): 2447394500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 5320421, 10640842, 21281684, 26602105, 53204210, 101087999, 106408420, 202175998, 404351996, 505439995, 1010879990, 2021759980]

約数ペア:

[(1, 2021759980), (2, 1010879990), (4, 505439995), (5, 404351996), (10, 202175998), (19, 106408420), (20, 101087999), (38, 53204210), (76, 26602105), (95, 21281684), (190, 10640842), (380, 5320421)]