18784008

素因数分解:

$2^3\times 3^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:256

約数の個数: 128

約数和(自身を含む): 57600000

約数和(自身を除く): 38815992

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 23, 24, 27, 36, 38, 46, 54, 57, 69, 72, 76, 92, 108, 114, 138, 152, 171, 184, 199, 207, 216, 228, 276, 342, 398, 414, 437, 456, 513, 552, 597, 621, 684, 796, 828, 874, 1026, 1194, 1242, 1311, 1368, 1592, 1656, 1748, 1791, 2052, 2388, 2484, 2622, 3496, 3582, 3781, 3933, 4104, 4577, 4776, 4968, 5244, 5373, 7164, 7562, 7866, 9154, 10488, 10746, 11343, 11799, 13731, 14328, 15124, 15732, 18308, 21492, 22686, 23598, 27462, 30248, 31464, 34029, 36616, 41193, 42984, 45372, 47196, 54924, 68058, 82386, 86963, 90744, 94392, 102087, 109848, 123579, 136116, 164772, 173926, 204174, 247158, 260889, 272232, 329544, 347852, 408348, 494316, 521778, 695704, 782667, 816696, 988632, 1043556, 1565334, 2087112, 2348001, 3130668, 4696002, 6261336, 9392004, 18784008]

約数ペア:

[(1, 18784008), (2, 9392004), (3, 6261336), (4, 4696002), (6, 3130668), (8, 2348001), (9, 2087112), (12, 1565334), (18, 1043556), (19, 988632), (23, 816696), (24, 782667), (27, 695704), (36, 521778), (38, 494316), (46, 408348), (54, 347852), (57, 329544), (69, 272232), (72, 260889), (76, 247158), (92, 204174), (108, 173926), (114, 164772), (138, 136116), (152, 123579), (171, 109848), (184, 102087), (199, 94392), (207, 90744), (216, 86963), (228, 82386), (276, 68058), (342, 54924), (398, 47196), (414, 45372), (437, 42984), (456, 41193), (513, 36616), (552, 34029), (597, 31464), (621, 30248), (684, 27462), (796, 23598), (828, 22686), (874, 21492), (1026, 18308), (1194, 15732), (1242, 15124), (1311, 14328), (1368, 13731), (1592, 11799), (1656, 11343), (1748, 10746), (1791, 10488), (2052, 9154), (2388, 7866), (2484, 7562), (2622, 7164), (3496, 5373), (3582, 5244), (3781, 4968), (3933, 4776), (4104, 4577)]