278840090

素因数分解:

$2^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{187141}}^1$

素因数の和:187297

約数の個数: 16

約数和(自身を含む): 505283400

約数和(自身を除く): 226443310

約数列:

[1, 2, 5, 10, 149, 298, 745, 1490, 187141, 374282, 935705, 1871410, 27884009, 55768018, 139420045, 278840090]

約数ペア:

[(1, 278840090), (2, 139420045), (5, 55768018), (10, 27884009), (149, 1871410), (298, 935705), (745, 374282), (1490, 187141)]