28318005

素因数分解:

$3^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{457}}^1$

素因数の和:497

約数の個数: 56

約数和(自身を含む): 54064152

約数和(自身を除く): 25746147

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 243, 255, 405, 457, 459, 729, 765, 1215, 1371, 1377, 2285, 2295, 3645, 4113, 4131, 6855, 6885, 7769, 12339, 12393, 20565, 20655, 23307, 37017, 38845, 61695, 61965, 69921, 111051, 116535, 185085, 209763, 333153, 349605, 555255, 629289, 1048815, 1665765, 1887867, 3146445, 5663601, 9439335, 28318005]

約数ペア:

[(1, 28318005), (3, 9439335), (5, 5663601), (9, 3146445), (15, 1887867), (17, 1665765), (27, 1048815), (45, 629289), (51, 555255), (81, 349605), (85, 333153), (135, 209763), (153, 185085), (243, 116535), (255, 111051), (405, 69921), (457, 61965), (459, 61695), (729, 38845), (765, 37017), (1215, 23307), (1371, 20655), (1377, 20565), (2285, 12393), (2295, 12339), (3645, 7769), (4113, 6885), (4131, 6855)]