20390475

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{38839}}^1$

素因数の和:38859

約数の個数: 24

約数和(自身を含む): 38529280

約数和(自身を除く): 18138805

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 525, 38839, 116517, 194195, 271873, 582585, 815619, 970975, 1359365, 2912925, 4078095, 6796825, 20390475]

約数ペア:

[(1, 20390475), (3, 6796825), (5, 4078095), (7, 2912925), (15, 1359365), (21, 970975), (25, 815619), (35, 582585), (75, 271873), (105, 194195), (175, 116517), (525, 38839)]