51517160

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{2003}}^1$

素因数の和:2657

約数の個数: 32

約数和(自身を含む): 116151840

約数和(自身を除く): 64634680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 2003, 2572, 3215, 4006, 5144, 6430, 8012, 10015, 12860, 16024, 20030, 25720, 40060, 80120, 1287929, 2575858, 5151716, 6439645, 10303432, 12879290, 25758580, 51517160]

約数ペア:

[(1, 51517160), (2, 25758580), (4, 12879290), (5, 10303432), (8, 6439645), (10, 5151716), (20, 2575858), (40, 1287929), (643, 80120), (1286, 40060), (2003, 25720), (2572, 20030), (3215, 16024), (4006, 12860), (5144, 10015), (6430, 8012)]