209212965

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{193}}^1$

素因数の和:343

約数の個数: 96

約数和(自身を含む): 419459040

約数和(自身を除く): 210246075

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 45, 51, 65, 85, 109, 117, 153, 193, 195, 221, 255, 327, 545, 579, 585, 663, 765, 965, 981, 1105, 1417, 1635, 1737, 1853, 1989, 2509, 2895, 3281, 3315, 4251, 4905, 5559, 7085, 7527, 8685, 9265, 9843, 9945, 12545, 12753, 16405, 16677, 21037, 21255, 22581, 24089, 27795, 29529, 37635, 42653, 49215, 63111, 63765, 72267, 83385, 105185, 112905, 120445, 127959, 147645, 189333, 213265, 216801, 273481, 315555, 357629, 361335, 383877, 639795, 820443, 946665, 1072887, 1084005, 1367405, 1788145, 1919385, 2461329, 3218661, 4102215, 4649177, 5364435, 12306645, 13947531, 16093305, 23245885, 41842593, 69737655, 209212965]

約数ペア:

[(1, 209212965), (3, 69737655), (5, 41842593), (9, 23245885), (13, 16093305), (15, 13947531), (17, 12306645), (39, 5364435), (45, 4649177), (51, 4102215), (65, 3218661), (85, 2461329), (109, 1919385), (117, 1788145), (153, 1367405), (193, 1084005), (195, 1072887), (221, 946665), (255, 820443), (327, 639795), (545, 383877), (579, 361335), (585, 357629), (663, 315555), (765, 273481), (965, 216801), (981, 213265), (1105, 189333), (1417, 147645), (1635, 127959), (1737, 120445), (1853, 112905), (1989, 105185), (2509, 83385), (2895, 72267), (3281, 63765), (3315, 63111), (4251, 49215), (4905, 42653), (5559, 37635), (7085, 29529), (7527, 27795), (8685, 24089), (9265, 22581), (9843, 21255), (9945, 21037), (12545, 16677), (12753, 16405)]