408036680

素因数分解:

$2^3\times 5^1\times {\mathrm{10200917}}^1$

素因数の和:10200928

約数の個数: 16

約数和(自身を含む): 918082620

約数和(自身を除く): 510045940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 10200917, 20401834, 40803668, 51004585, 81607336, 102009170, 204018340, 408036680]

約数ペア:

[(1, 408036680), (2, 204018340), (4, 102009170), (5, 81607336), (8, 51004585), (10, 40803668), (20, 20401834), (40, 10200917)]