68643440

素因数分解:

$2^4\times 5^1\times {\mathrm{858043}}^1$

素因数の和:858056

約数の個数: 20

約数和(自身を含む): 159596184

約数和(自身を除く): 90952744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 858043, 1716086, 3432172, 4290215, 6864344, 8580430, 13728688, 17160860, 34321720, 68643440]

約数ペア:

[(1, 68643440), (2, 34321720), (4, 17160860), (5, 13728688), (8, 8580430), (10, 6864344), (16, 4290215), (20, 3432172), (40, 1716086), (80, 858043)]