28575260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{509}}^1$

素因数の和:926

約数の個数: 48

約数和(自身を含む): 68886720

約数和(自身を除く): 40311460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 401, 509, 802, 1018, 1604, 2005, 2036, 2545, 2807, 3563, 4010, 5090, 5614, 7126, 8020, 10180, 11228, 14035, 14252, 17815, 28070, 35630, 56140, 71260, 204109, 408218, 816436, 1020545, 1428763, 2041090, 2857526, 4082180, 5715052, 7143815, 14287630, 28575260]

約数ペア:

[(1, 28575260), (2, 14287630), (4, 7143815), (5, 5715052), (7, 4082180), (10, 2857526), (14, 2041090), (20, 1428763), (28, 1020545), (35, 816436), (70, 408218), (140, 204109), (401, 71260), (509, 56140), (802, 35630), (1018, 28070), (1604, 17815), (2005, 14252), (2036, 14035), (2545, 11228), (2807, 10180), (3563, 8020), (4010, 7126), (5090, 5614)]