20450750

素因数分解:

$2^1\times 5^3\times {\mathrm{179}}^1\times {\mathrm{457}}^1$

素因数の和:653

約数の個数: 32

約数和(自身を含む): 38581920

約数和(自身を除く): 18131170

約数列:

[1, 2, 5, 10, 25, 50, 125, 179, 250, 358, 457, 895, 914, 1790, 2285, 4475, 4570, 8950, 11425, 22375, 22850, 44750, 57125, 81803, 114250, 163606, 409015, 818030, 2045075, 4090150, 10225375, 20450750]

約数ペア:

[(1, 20450750), (2, 10225375), (5, 4090150), (10, 2045075), (25, 818030), (50, 409015), (125, 163606), (179, 114250), (250, 81803), (358, 57125), (457, 44750), (895, 22850), (914, 22375), (1790, 11425), (2285, 8950), (4475, 4570)]