15680025

素因数分解:

$3^2\times 5^2\times {\mathrm{227}}^1\times {\mathrm{307}}^1$

素因数の和:550

約数の個数: 36

約数和(自身を含む): 28300272

約数和(自身を除く): 12620247

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 227, 307, 681, 921, 1135, 1535, 2043, 2763, 3405, 4605, 5675, 7675, 10215, 13815, 17025, 23025, 51075, 69075, 69689, 209067, 348445, 627201, 1045335, 1742225, 3136005, 5226675, 15680025]

約数ペア:

[(1, 15680025), (3, 5226675), (5, 3136005), (9, 1742225), (15, 1045335), (25, 627201), (45, 348445), (75, 209067), (225, 69689), (227, 69075), (307, 51075), (681, 23025), (921, 17025), (1135, 13815), (1535, 10215), (2043, 7675), (2763, 5675), (3405, 4605)]