68810840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{245753}}^1$

素因数の和:245771

約数の個数: 32

約数和(自身を含む): 176942880

約数和(自身を除く): 108132040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 245753, 491506, 983012, 1228765, 1720271, 1966024, 2457530, 3440542, 4915060, 6881084, 8601355, 9830120, 13762168, 17202710, 34405420, 68810840]

約数ペア:

[(1, 68810840), (2, 34405420), (4, 17202710), (5, 13762168), (7, 9830120), (8, 8601355), (10, 6881084), (14, 4915060), (20, 3440542), (28, 2457530), (35, 1966024), (40, 1720271), (56, 1228765), (70, 983012), (140, 491506), (280, 245753)]