389001520

素因数分解:

$2^4\times 5^1\times {\mathrm{4862519}}^1$

素因数の和:4862532

約数の個数: 20

約数和(自身を含む): 904428720

約数和(自身を除く): 515427200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4862519, 9725038, 19450076, 24312595, 38900152, 48625190, 77800304, 97250380, 194500760, 389001520]

約数ペア:

[(1, 389001520), (2, 194500760), (4, 97250380), (5, 77800304), (8, 48625190), (10, 38900152), (16, 24312595), (20, 19450076), (40, 9725038), (80, 4862519)]