81366800

素因数分解:

$2^4\times 5^2\times {\mathrm{203417}}^1$

素因数の和:203435

約数の個数: 30

約数和(自身を含む): 195484698

約数和(自身を除く): 114117898

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 203417, 406834, 813668, 1017085, 1627336, 2034170, 3254672, 4068340, 5085425, 8136680, 10170850, 16273360, 20341700, 40683400, 81366800]

約数ペア:

[(1, 81366800), (2, 40683400), (4, 20341700), (5, 16273360), (8, 10170850), (10, 8136680), (16, 5085425), (20, 4068340), (25, 3254672), (40, 2034170), (50, 1627336), (80, 1017085), (100, 813668), (200, 406834), (400, 203417)]