28208390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{1487}}^1$

素因数の和:1772

約数の個数: 32

約数和(自身を含む): 58281984

約数和(自身を除く): 30073594

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 271, 542, 1355, 1487, 1897, 2710, 2974, 3794, 7435, 9485, 10409, 14870, 18970, 20818, 52045, 104090, 402977, 805954, 2014885, 2820839, 4029770, 5641678, 14104195, 28208390]

約数ペア:

[(1, 28208390), (2, 14104195), (5, 5641678), (7, 4029770), (10, 2820839), (14, 2014885), (35, 805954), (70, 402977), (271, 104090), (542, 52045), (1355, 20818), (1487, 18970), (1897, 14870), (2710, 10409), (2974, 9485), (3794, 7435)]