2021540

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1657}}^1$

素因数の和:1727

約数の個数: 24

約数和(自身を含む): 4317432

約数和(自身を除く): 2295892

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 1657, 3314, 6628, 8285, 16570, 33140, 101077, 202154, 404308, 505385, 1010770, 2021540]

約数ペア:

[(1, 2021540), (2, 1010770), (4, 505385), (5, 404308), (10, 202154), (20, 101077), (61, 33140), (122, 16570), (244, 8285), (305, 6628), (610, 3314), (1220, 1657)]