28439425

素因数分解:

$5^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{997}}^1$

素因数の和:1177

約数の個数: 24

約数和(自身を含む): 40590656

約数和(自身を除く): 12151231

約数列:

[1, 5, 7, 25, 35, 163, 175, 815, 997, 1141, 4075, 4985, 5705, 6979, 24925, 28525, 34895, 162511, 174475, 812555, 1137577, 4062775, 5687885, 28439425]

約数ペア:

[(1, 28439425), (5, 5687885), (7, 4062775), (25, 1137577), (35, 812555), (163, 174475), (175, 162511), (815, 34895), (997, 28525), (1141, 24925), (4075, 6979), (4985, 5705)]