28306250

素因数分解:

$2^1\times 5^5\times 7^1\times {\mathrm{647}}^1$

素因数の和:681

約数の個数: 48

約数和(自身を含む): 60746112

約数和(自身を除く): 32439862

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 125, 175, 250, 350, 625, 647, 875, 1250, 1294, 1750, 3125, 3235, 4375, 4529, 6250, 6470, 8750, 9058, 16175, 21875, 22645, 32350, 43750, 45290, 80875, 113225, 161750, 226450, 404375, 566125, 808750, 1132250, 2021875, 2830625, 4043750, 5661250, 14153125, 28306250]

約数ペア:

[(1, 28306250), (2, 14153125), (5, 5661250), (7, 4043750), (10, 2830625), (14, 2021875), (25, 1132250), (35, 808750), (50, 566125), (70, 404375), (125, 226450), (175, 161750), (250, 113225), (350, 80875), (625, 45290), (647, 43750), (875, 32350), (1250, 22645), (1294, 21875), (1750, 16175), (3125, 9058), (3235, 8750), (4375, 6470), (4529, 6250)]