81475884

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:236

約数の個数: 144

約数和(自身を含む): 246518272

約数和(自身を除く): 165042388

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 43, 63, 73, 84, 86, 103, 126, 129, 146, 172, 206, 219, 252, 258, 292, 301, 309, 387, 412, 438, 511, 516, 602, 618, 657, 721, 774, 876, 903, 927, 1022, 1204, 1236, 1314, 1442, 1533, 1548, 1806, 1854, 2044, 2163, 2628, 2709, 2884, 3066, 3139, 3612, 3708, 4326, 4429, 4599, 5418, 6132, 6278, 6489, 7519, 8652, 8858, 9198, 9417, 10836, 12556, 12978, 13287, 15038, 17716, 18396, 18834, 21973, 22557, 25956, 26574, 28251, 30076, 31003, 37668, 39861, 43946, 45114, 52633, 53148, 56502, 62006, 65919, 67671, 79722, 87892, 90228, 93009, 105266, 113004, 124012, 131838, 135342, 157899, 159444, 186018, 197757, 210532, 263676, 270684, 279027, 315798, 323317, 372036, 395514, 473697, 558054, 631596, 646634, 791028, 947394, 969951, 1116108, 1293268, 1894788, 1939902, 2263219, 2909853, 3879804, 4526438, 5819706, 6789657, 9052876, 11639412, 13579314, 20368971, 27158628, 40737942, 81475884]

約数ペア:

[(1, 81475884), (2, 40737942), (3, 27158628), (4, 20368971), (6, 13579314), (7, 11639412), (9, 9052876), (12, 6789657), (14, 5819706), (18, 4526438), (21, 3879804), (28, 2909853), (36, 2263219), (42, 1939902), (43, 1894788), (63, 1293268), (73, 1116108), (84, 969951), (86, 947394), (103, 791028), (126, 646634), (129, 631596), (146, 558054), (172, 473697), (206, 395514), (219, 372036), (252, 323317), (258, 315798), (292, 279027), (301, 270684), (309, 263676), (387, 210532), (412, 197757), (438, 186018), (511, 159444), (516, 157899), (602, 135342), (618, 131838), (657, 124012), (721, 113004), (774, 105266), (876, 93009), (903, 90228), (927, 87892), (1022, 79722), (1204, 67671), (1236, 65919), (1314, 62006), (1442, 56502), (1533, 53148), (1548, 52633), (1806, 45114), (1854, 43946), (2044, 39861), (2163, 37668), (2628, 31003), (2709, 30076), (2884, 28251), (3066, 26574), (3139, 25956), (3612, 22557), (3708, 21973), (4326, 18834), (4429, 18396), (4599, 17716), (5418, 15038), (6132, 13287), (6278, 12978), (6489, 12556), (7519, 10836), (8652, 9417), (8858, 9198)]