389618020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1770991}}^1$

素因数の和:1771011

約数の個数: 24

約数和(自身を含む): 892579968

約数和(自身を除く): 502961948

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1770991, 3541982, 7083964, 8854955, 17709910, 19480901, 35419820, 38961802, 77923604, 97404505, 194809010, 389618020]

約数ペア:

[(1, 389618020), (2, 194809010), (4, 97404505), (5, 77923604), (10, 38961802), (11, 35419820), (20, 19480901), (22, 17709910), (44, 8854955), (55, 7083964), (110, 3541982), (220, 1770991)]