343720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{661}}^1$

素因数の和:685

約数の個数: 32

約数和(自身を含む): 834120

約数和(自身を除く): 490400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 661, 1322, 2644, 3305, 5288, 6610, 8593, 13220, 17186, 26440, 34372, 42965, 68744, 85930, 171860, 343720]

約数ペア:

[(1, 343720), (2, 171860), (4, 85930), (5, 68744), (8, 42965), (10, 34372), (13, 26440), (20, 17186), (26, 13220), (40, 8593), (52, 6610), (65, 5288), (104, 3305), (130, 2644), (260, 1322), (520, 661)]