1285895

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{271}}^1$

素因数の和:362

約数の個数: 16

約数和(自身を含む): 1690752

約数和(自身を除く): 404857

約数列:

[1, 5, 13, 65, 73, 271, 365, 949, 1355, 3523, 4745, 17615, 19783, 98915, 257179, 1285895]

約数ペア:

[(1, 1285895), (5, 257179), (13, 98915), (65, 19783), (73, 17615), (271, 4745), (365, 3523), (949, 1355)]