178849215

素因数分解:

$3^6\times 5^1\times {\mathrm{139}}^1\times {\mathrm{353}}^1$

素因数の和:515

約数の個数: 56

約数和(自身を含む): 325014480

約数和(自身を除く): 146165265

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 139, 243, 353, 405, 417, 695, 729, 1059, 1215, 1251, 1765, 2085, 3177, 3645, 3753, 5295, 6255, 9531, 11259, 15885, 18765, 28593, 33777, 47655, 49067, 56295, 85779, 101331, 142965, 147201, 168885, 245335, 257337, 428895, 441603, 506655, 736005, 1286685, 1324809, 2208015, 3974427, 6624045, 11923281, 19872135, 35769843, 59616405, 178849215]

約数ペア:

[(1, 178849215), (3, 59616405), (5, 35769843), (9, 19872135), (15, 11923281), (27, 6624045), (45, 3974427), (81, 2208015), (135, 1324809), (139, 1286685), (243, 736005), (353, 506655), (405, 441603), (417, 428895), (695, 257337), (729, 245335), (1059, 168885), (1215, 147201), (1251, 142965), (1765, 101331), (2085, 85779), (3177, 56295), (3645, 49067), (3753, 47655), (5295, 33777), (6255, 28593), (9531, 18765), (11259, 15885)]