201919725

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{128203}}^1$

素因数の和:128226

約数の個数: 36

約数和(自身を含む): 413329696

約数和(自身を除く): 211409971

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 175, 225, 315, 525, 1575, 128203, 384609, 641015, 897421, 1153827, 1923045, 2692263, 3205075, 4487105, 5769135, 8076789, 9615225, 13461315, 22435525, 28845675, 40383945, 67306575, 201919725]

約数ペア:

[(1, 201919725), (3, 67306575), (5, 40383945), (7, 28845675), (9, 22435525), (15, 13461315), (21, 9615225), (25, 8076789), (35, 5769135), (45, 4487105), (63, 3205075), (75, 2692263), (105, 1923045), (175, 1153827), (225, 897421), (315, 641015), (525, 384609), (1575, 128203)]