181317855

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{199}}^1$

素因数の和:388

約数の個数: 64

約数和(自身を含む): 322560000

約数和(自身を除く): 141242145

約数列:

[1, 3, 5, 15, 19, 23, 57, 69, 95, 115, 139, 199, 285, 345, 417, 437, 597, 695, 995, 1311, 2085, 2185, 2641, 2985, 3197, 3781, 4577, 6555, 7923, 9591, 11343, 13205, 13731, 15985, 18905, 22885, 27661, 39615, 47955, 56715, 60743, 68655, 82983, 86963, 138305, 182229, 260889, 303715, 414915, 434815, 525559, 636203, 911145, 1304445, 1576677, 1908609, 2627795, 3181015, 7883385, 9543045, 12087857, 36263571, 60439285, 181317855]

約数ペア:

[(1, 181317855), (3, 60439285), (5, 36263571), (15, 12087857), (19, 9543045), (23, 7883385), (57, 3181015), (69, 2627795), (95, 1908609), (115, 1576677), (139, 1304445), (199, 911145), (285, 636203), (345, 525559), (417, 434815), (437, 414915), (597, 303715), (695, 260889), (995, 182229), (1311, 138305), (2085, 86963), (2185, 82983), (2641, 68655), (2985, 60743), (3197, 56715), (3781, 47955), (4577, 39615), (6555, 27661), (7923, 22885), (9591, 18905), (11343, 15985), (13205, 13731)]