499331440

素因数分解:

$2^4\times 5^1\times {\mathrm{6241643}}^1$

素因数の和:6241656

約数の個数: 20

約数和(自身を含む): 1160945784

約数和(自身を除く): 661614344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 6241643, 12483286, 24966572, 31208215, 49933144, 62416430, 99866288, 124832860, 249665720, 499331440]

約数ペア:

[(1, 499331440), (2, 249665720), (4, 124832860), (5, 99866288), (8, 62416430), (10, 49933144), (16, 31208215), (20, 24966572), (40, 12483286), (80, 6241643)]