1559890

素因数分解:

$2^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{401}}^1$

素因数の和:797

約数の個数: 16

約数和(自身を含む): 2822040

約数和(自身を除く): 1262150

約数列:

[1, 2, 5, 10, 389, 401, 778, 802, 1945, 2005, 3890, 4010, 155989, 311978, 779945, 1559890]

約数ペア:

[(1, 1559890), (2, 779945), (5, 311978), (10, 155989), (389, 4010), (401, 3890), (778, 2005), (802, 1945)]