128533340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{494359}}^1$

素因数の和:494381

約数の個数: 24

約数和(自身を含む): 290683680

約数和(自身を除く): 162150340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 494359, 988718, 1977436, 2471795, 4943590, 6426667, 9887180, 12853334, 25706668, 32133335, 64266670, 128533340]

約数ペア:

[(1, 128533340), (2, 64266670), (4, 32133335), (5, 25706668), (10, 12853334), (13, 9887180), (20, 6426667), (26, 4943590), (52, 2471795), (65, 1977436), (130, 988718), (260, 494359)]