28691290

素因数分解:

$2^1\times 5^1\times {\mathrm{349}}^1\times {\mathrm{8221}}^1$

素因数の和:8577

約数の個数: 16

約数和(自身を含む): 51798600

約数和(自身を除く): 23107310

約数列:

[1, 2, 5, 10, 349, 698, 1745, 3490, 8221, 16442, 41105, 82210, 2869129, 5738258, 14345645, 28691290]

約数ペア:

[(1, 28691290), (2, 14345645), (5, 5738258), (10, 2869129), (349, 82210), (698, 41105), (1745, 16442), (3490, 8221)]