25696280

素因数分解:

$2^3\times 5^1\times {\mathrm{642407}}^1$

素因数の和:642418

約数の個数: 16

約数和(自身を含む): 57816720

約数和(自身を除く): 32120440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 642407, 1284814, 2569628, 3212035, 5139256, 6424070, 12848140, 25696280]

約数ペア:

[(1, 25696280), (2, 12848140), (4, 6424070), (5, 5139256), (8, 3212035), (10, 2569628), (20, 1284814), (40, 642407)]