28038015

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{643}}^1$

素因数の和:693

約数の個数: 64

約数和(自身を含む): 55641600

約数和(自身を除く): 27603585

約数列:

[1, 3, 5, 9, 15, 17, 19, 27, 45, 51, 57, 85, 95, 135, 153, 171, 255, 285, 323, 459, 513, 643, 765, 855, 969, 1615, 1929, 2295, 2565, 2907, 3215, 4845, 5787, 8721, 9645, 10931, 12217, 14535, 17361, 28935, 32793, 36651, 43605, 54655, 61085, 86805, 98379, 109953, 163965, 183255, 207689, 295137, 329859, 491895, 549765, 623067, 1038445, 1475685, 1649295, 1869201, 3115335, 5607603, 9346005, 28038015]

約数ペア:

[(1, 28038015), (3, 9346005), (5, 5607603), (9, 3115335), (15, 1869201), (17, 1649295), (19, 1475685), (27, 1038445), (45, 623067), (51, 549765), (57, 491895), (85, 329859), (95, 295137), (135, 207689), (153, 183255), (171, 163965), (255, 109953), (285, 98379), (323, 86805), (459, 61085), (513, 54655), (643, 43605), (765, 36651), (855, 32793), (969, 28935), (1615, 17361), (1929, 14535), (2295, 12217), (2565, 10931), (2907, 9645), (3215, 8721), (4845, 5787)]