137621680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{245753}}^1$

素因数の和:245773

約数の個数: 40

約数和(自身を含む): 365681952

約数和(自身を除く): 228060272

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 245753, 491506, 983012, 1228765, 1720271, 1966024, 2457530, 3440542, 3932048, 4915060, 6881084, 8601355, 9830120, 13762168, 17202710, 19660240, 27524336, 34405420, 68810840, 137621680]

約数ペア:

[(1, 137621680), (2, 68810840), (4, 34405420), (5, 27524336), (7, 19660240), (8, 17202710), (10, 13762168), (14, 9830120), (16, 8601355), (20, 6881084), (28, 4915060), (35, 3932048), (40, 3440542), (56, 2457530), (70, 1966024), (80, 1720271), (112, 1228765), (140, 983012), (280, 491506), (560, 245753)]