1290385

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1$

素因数の和:105

約数の個数: 24

約数和(自身を含む): 1768320

約数和(自身を除く): 477935

約数列:

[1, 5, 17, 19, 47, 85, 95, 235, 289, 323, 799, 893, 1445, 1615, 3995, 4465, 5491, 13583, 15181, 27455, 67915, 75905, 258077, 1290385]

約数ペア:

[(1, 1290385), (5, 258077), (17, 75905), (19, 67915), (47, 27455), (85, 15181), (95, 13583), (235, 5491), (289, 4465), (323, 3995), (799, 1615), (893, 1445)]