28393975

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{433}}^1$

素因数の和:547

約数の個数: 24

約数和(自身を含む): 36702512

約数和(自身を除く): 8308537

約数列:

[1, 5, 25, 43, 61, 215, 305, 433, 1075, 1525, 2165, 2623, 10825, 13115, 18619, 26413, 65575, 93095, 132065, 465475, 660325, 1135759, 5678795, 28393975]

約数ペア:

[(1, 28393975), (5, 5678795), (25, 1135759), (43, 660325), (61, 465475), (215, 132065), (305, 93095), (433, 65575), (1075, 26413), (1525, 18619), (2165, 13115), (2623, 10825)]