66636440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{128147}}^1$

素因数の和:128171

約数の個数: 32

約数和(自身を含む): 161466480

約数和(自身を除く): 94830040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 128147, 256294, 512588, 640735, 1025176, 1281470, 1665911, 2562940, 3331822, 5125880, 6663644, 8329555, 13327288, 16659110, 33318220, 66636440]

約数ペア:

[(1, 66636440), (2, 33318220), (4, 16659110), (5, 13327288), (8, 8329555), (10, 6663644), (13, 5125880), (20, 3331822), (26, 2562940), (40, 1665911), (52, 1281470), (65, 1025176), (104, 640735), (130, 512588), (260, 256294), (520, 128147)]