19856788840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{70917103}}^1$

素因数の和:70917121

約数の個数: 32

約数和(自身を含む): 51060314880

約数和(自身を除く): 31203526040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 70917103, 141834206, 283668412, 354585515, 496419721, 567336824, 709171030, 992839442, 1418342060, 1985678884, 2482098605, 2836684120, 3971357768, 4964197210, 9928394420, 19856788840]

約数ペア:

[(1, 19856788840), (2, 9928394420), (4, 4964197210), (5, 3971357768), (7, 2836684120), (8, 2482098605), (10, 1985678884), (14, 1418342060), (20, 992839442), (28, 709171030), (35, 567336824), (40, 496419721), (56, 354585515), (70, 283668412), (140, 141834206), (280, 70917103)]