8507720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{16361}}^1$

素因数の和:16385

約数の個数: 32

約数和(自身を含む): 20616120

約数和(自身を除く): 12108400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 16361, 32722, 65444, 81805, 130888, 163610, 212693, 327220, 425386, 654440, 850772, 1063465, 1701544, 2126930, 4253860, 8507720]

約数ペア:

[(1, 8507720), (2, 4253860), (4, 2126930), (5, 1701544), (8, 1063465), (10, 850772), (13, 654440), (20, 425386), (26, 327220), (40, 212693), (52, 163610), (65, 130888), (104, 81805), (130, 65444), (260, 32722), (520, 16361)]