209230575

素因数分解:

$3^1\times 5^2\times {\mathrm{1621}}^1\times {\mathrm{1721}}^1$

素因数の和:3355

約数の個数: 24

約数和(自身を含む): 346342416

約数和(自身を除く): 137111841

約数列:

[1, 3, 5, 15, 25, 75, 1621, 1721, 4863, 5163, 8105, 8605, 24315, 25815, 40525, 43025, 121575, 129075, 2789741, 8369223, 13948705, 41846115, 69743525, 209230575]

約数ペア:

[(1, 209230575), (3, 69743525), (5, 41846115), (15, 13948705), (25, 8369223), (75, 2789741), (1621, 129075), (1721, 121575), (4863, 43025), (5163, 40525), (8105, 25815), (8605, 24315)]