1801915

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:111

約数の個数: 24

約数和(自身を含む): 2431440

約数和(自身を除く): 629525

約数列:

[1, 5, 17, 29, 43, 85, 145, 215, 289, 493, 731, 1247, 1445, 2465, 3655, 6235, 8381, 12427, 21199, 41905, 62135, 105995, 360383, 1801915]

約数ペア:

[(1, 1801915), (5, 360383), (17, 105995), (29, 62135), (43, 41905), (85, 21199), (145, 12427), (215, 8381), (289, 6235), (493, 3655), (731, 2465), (1247, 1445)]