205251345

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{137}}^1\times {\mathrm{197}}^1$

素因数の和:371

約数の個数: 72

約数和(自身を含む): 390022776

約数和(自身を除く): 184771431

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 137, 169, 195, 197, 411, 507, 585, 591, 685, 845, 985, 1233, 1521, 1773, 1781, 2055, 2535, 2561, 2955, 5343, 6165, 7605, 7683, 8865, 8905, 12805, 16029, 23049, 23153, 26715, 26989, 33293, 38415, 69459, 80145, 80967, 99879, 115245, 115765, 134945, 166465, 208377, 242901, 299637, 347295, 350857, 404835, 499395, 1041885, 1052571, 1214505, 1498185, 1754285, 3157713, 4561141, 5262855, 13683423, 15788565, 22805705, 41050269, 68417115, 205251345]

約数ペア:

[(1, 205251345), (3, 68417115), (5, 41050269), (9, 22805705), (13, 15788565), (15, 13683423), (39, 5262855), (45, 4561141), (65, 3157713), (117, 1754285), (137, 1498185), (169, 1214505), (195, 1052571), (197, 1041885), (411, 499395), (507, 404835), (585, 350857), (591, 347295), (685, 299637), (845, 242901), (985, 208377), (1233, 166465), (1521, 134945), (1773, 115765), (1781, 115245), (2055, 99879), (2535, 80967), (2561, 80145), (2955, 69459), (5343, 38415), (6165, 33293), (7605, 26989), (7683, 26715), (8865, 23153), (8905, 23049), (12805, 16029)]