20457035

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{193}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 27656640

約数和(自身を除く): 7199605

約数列:

[1, 5, 17, 29, 43, 85, 145, 193, 215, 493, 731, 965, 1247, 2465, 3281, 3655, 5597, 6235, 8299, 16405, 21199, 27985, 41495, 95149, 105995, 141083, 240671, 475745, 705415, 1203355, 4091407, 20457035]

約数ペア:

[(1, 20457035), (5, 4091407), (17, 1203355), (29, 705415), (43, 475745), (85, 240671), (145, 141083), (193, 105995), (215, 95149), (493, 41495), (731, 27985), (965, 21199), (1247, 16405), (2465, 8299), (3281, 6235), (3655, 5597)]