19505545

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1$

素因数の和:285

約数の個数: 32

約数和(自身を含む): 26399520

約数和(自身を除く): 6893975

約数列:

[1, 5, 17, 29, 41, 85, 145, 193, 205, 493, 697, 965, 1189, 2465, 3281, 3485, 5597, 5945, 7913, 16405, 20213, 27985, 39565, 95149, 101065, 134521, 229477, 475745, 672605, 1147385, 3901109, 19505545]

約数ペア:

[(1, 19505545), (5, 3901109), (17, 1147385), (29, 672605), (41, 475745), (85, 229477), (145, 134521), (193, 101065), (205, 95149), (493, 39565), (697, 27985), (965, 20213), (1189, 16405), (2465, 7913), (3281, 5945), (3485, 5597)]