71380988

素因数分解:

$2^2\times 7^1\times {\mathrm{1283}}^1\times {\mathrm{1987}}^1$

素因数の和:3281

約数の個数: 24

約数和(自身を含む): 142945152

約数和(自身を除く): 71564164

約数列:

[1, 2, 4, 7, 14, 28, 1283, 1987, 2566, 3974, 5132, 7948, 8981, 13909, 17962, 27818, 35924, 55636, 2549321, 5098642, 10197284, 17845247, 35690494, 71380988]

約数ペア:

[(1, 71380988), (2, 35690494), (4, 17845247), (7, 10197284), (14, 5098642), (28, 2549321), (1283, 55636), (1987, 35924), (2566, 27818), (3974, 17962), (5132, 13909), (7948, 8981)]