68664440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{132047}}^1$

素因数の和:132071

約数の個数: 32

約数和(自身を含む): 166380480

約数和(自身を除く): 97716040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 132047, 264094, 528188, 660235, 1056376, 1320470, 1716611, 2640940, 3433222, 5281880, 6866444, 8583055, 13732888, 17166110, 34332220, 68664440]

約数ペア:

[(1, 68664440), (2, 34332220), (4, 17166110), (5, 13732888), (8, 8583055), (10, 6866444), (13, 5281880), (20, 3433222), (26, 2640940), (40, 1716611), (52, 1320470), (65, 1056376), (104, 660235), (130, 528188), (260, 264094), (520, 132047)]