338780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1303}}^1$

素因数の和:1325

約数の個数: 24

約数和(自身を含む): 766752

約数和(自身を除く): 427972

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1303, 2606, 5212, 6515, 13030, 16939, 26060, 33878, 67756, 84695, 169390, 338780]

約数ペア:

[(1, 338780), (2, 169390), (4, 84695), (5, 67756), (10, 33878), (13, 26060), (20, 16939), (26, 13030), (52, 6515), (65, 5212), (130, 2606), (260, 1303)]