28015845

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{353}}^1$

素因数の和:422

約数の個数: 64

約数和(自身を含む): 54238464

約数和(自身を除く): 26222619

約数列:

[1, 3, 5, 11, 13, 15, 33, 37, 39, 55, 65, 111, 143, 165, 185, 195, 353, 407, 429, 481, 555, 715, 1059, 1221, 1443, 1765, 2035, 2145, 2405, 3883, 4589, 5291, 5295, 6105, 7215, 11649, 13061, 13767, 15873, 19415, 22945, 26455, 39183, 50479, 58245, 65305, 68835, 79365, 143671, 151437, 169793, 195915, 252395, 431013, 509379, 718355, 757185, 848965, 1867723, 2155065, 2546895, 5603169, 9338615, 28015845]

約数ペア:

[(1, 28015845), (3, 9338615), (5, 5603169), (11, 2546895), (13, 2155065), (15, 1867723), (33, 848965), (37, 757185), (39, 718355), (55, 509379), (65, 431013), (111, 252395), (143, 195915), (165, 169793), (185, 151437), (195, 143671), (353, 79365), (407, 68835), (429, 65305), (481, 58245), (555, 50479), (715, 39183), (1059, 26455), (1221, 22945), (1443, 19415), (1765, 15873), (2035, 13767), (2145, 13061), (2405, 11649), (3883, 7215), (4589, 6105), (5291, 5295)]