499195280

素因数分解:

$2^4\times 5^1\times {\mathrm{6239941}}^1$

素因数の和:6239954

約数の個数: 20

約数和(自身を含む): 1160629212

約数和(自身を除く): 661433932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 6239941, 12479882, 24959764, 31199705, 49919528, 62399410, 99839056, 124798820, 249597640, 499195280]

約数ペア:

[(1, 499195280), (2, 249597640), (4, 124798820), (5, 99839056), (8, 62399410), (10, 49919528), (16, 31199705), (20, 24959764), (40, 12479882), (80, 6239941)]