89405720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{131479}}^1$

素因数の和:131507

約数の個数: 32

約数和(自身を含む): 212997600

約数和(自身を除く): 123591880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 131479, 262958, 525916, 657395, 1051832, 1314790, 2235143, 2629580, 4470286, 5259160, 8940572, 11175715, 17881144, 22351430, 44702860, 89405720]

約数ペア:

[(1, 89405720), (2, 44702860), (4, 22351430), (5, 17881144), (8, 11175715), (10, 8940572), (17, 5259160), (20, 4470286), (34, 2629580), (40, 2235143), (68, 1314790), (85, 1051832), (136, 657395), (170, 525916), (340, 262958), (680, 131479)]