68307908

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{409}}^1\times {\mathrm{971}}^1$

素因数の和:1427

約数の個数: 24

約数和(自身を含む): 122744160

約数和(自身を除く): 54436252

約数列:

[1, 2, 4, 43, 86, 172, 409, 818, 971, 1636, 1942, 3884, 17587, 35174, 41753, 70348, 83506, 167012, 397139, 794278, 1588556, 17076977, 34153954, 68307908]

約数ペア:

[(1, 68307908), (2, 34153954), (4, 17076977), (43, 1588556), (86, 794278), (172, 397139), (409, 167012), (818, 83506), (971, 70348), (1636, 41753), (1942, 35174), (3884, 17587)]