137880016

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{200407}}^1$

素因数の和:200458

約数の個数: 20

約数和(自身を含む): 273356512

約数和(自身を除く): 135476496

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 200407, 400814, 801628, 1603256, 3206512, 8617501, 17235002, 34470004, 68940008, 137880016]

約数ペア:

[(1, 137880016), (2, 68940008), (4, 34470004), (8, 17235002), (16, 8617501), (43, 3206512), (86, 1603256), (172, 801628), (344, 400814), (688, 200407)]