990075

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{307}}^1$

素因数の和:363

約数の個数: 24

約数和(自身を含む): 1680448

約数和(自身を除く): 690373

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 307, 645, 921, 1075, 1535, 3225, 4605, 7675, 13201, 23025, 39603, 66005, 198015, 330025, 990075]

約数ペア:

[(1, 990075), (3, 330025), (5, 198015), (15, 66005), (25, 39603), (43, 23025), (75, 13201), (129, 7675), (215, 4605), (307, 3225), (645, 1535), (921, 1075)]