28768775

素因数分解:

$5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{5303}}^1$

素因数の和:5351

約数の個数: 24

約数和(自身を含む): 42092544

約数和(自身を除く): 13323769

約数列:

[1, 5, 7, 25, 31, 35, 155, 175, 217, 775, 1085, 5303, 5425, 26515, 37121, 132575, 164393, 185605, 821965, 928025, 1150751, 4109825, 5753755, 28768775]

約数ペア:

[(1, 28768775), (5, 5753755), (7, 4109825), (25, 1150751), (31, 928025), (35, 821965), (155, 185605), (175, 164393), (217, 132575), (775, 37121), (1085, 26515), (5303, 5425)]