28081025

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{9439}}^1$

素因数の和:9473

約数の個数: 24

約数和(自身を含む): 42140160

約数和(自身を除く): 14059135

約数列:

[1, 5, 7, 17, 25, 35, 85, 119, 175, 425, 595, 2975, 9439, 47195, 66073, 160463, 235975, 330365, 802315, 1123241, 1651825, 4011575, 5616205, 28081025]

約数ペア:

[(1, 28081025), (5, 5616205), (7, 4011575), (17, 1651825), (25, 1123241), (35, 802315), (85, 330365), (119, 235975), (175, 160463), (425, 66073), (595, 47195), (2975, 9439)]