677690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{401}}^1$

素因数の和:434

約数の個数: 24

約数和(自身を含む): 1324188

約数和(自身を除く): 646498

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 401, 802, 845, 1690, 2005, 4010, 5213, 10426, 26065, 52130, 67769, 135538, 338845, 677690]

約数ペア:

[(1, 677690), (2, 338845), (5, 135538), (10, 67769), (13, 52130), (26, 26065), (65, 10426), (130, 5213), (169, 4010), (338, 2005), (401, 1690), (802, 845)]