28176440

素因数分解:

$2^3\times 5^1\times {\mathrm{277}}^1\times {\mathrm{2543}}^1$

素因数の和:2831

約数の個数: 32

約数和(自身を含む): 63650880

約数和(自身を除く): 35474440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 277, 554, 1108, 1385, 2216, 2543, 2770, 5086, 5540, 10172, 11080, 12715, 20344, 25430, 50860, 101720, 704411, 1408822, 2817644, 3522055, 5635288, 7044110, 14088220, 28176440]

約数ペア:

[(1, 28176440), (2, 14088220), (4, 7044110), (5, 5635288), (8, 3522055), (10, 2817644), (20, 1408822), (40, 704411), (277, 101720), (554, 50860), (1108, 25430), (1385, 20344), (2216, 12715), (2543, 11080), (2770, 10172), (5086, 5540)]