18781504

素因数分解:

$2^6\times 7^2\times {\mathrm{53}}^1\times {\mathrm{113}}^1$

素因数の和:192

約数の個数: 84

約数和(自身を含む): 44563284

約数和(自身を除く): 25781780

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 53, 56, 64, 98, 106, 112, 113, 196, 212, 224, 226, 371, 392, 424, 448, 452, 742, 784, 791, 848, 904, 1484, 1568, 1582, 1696, 1808, 2597, 2968, 3136, 3164, 3392, 3616, 5194, 5537, 5936, 5989, 6328, 7232, 10388, 11074, 11872, 11978, 12656, 20776, 22148, 23744, 23956, 25312, 41552, 41923, 44296, 47912, 50624, 83104, 83846, 88592, 95824, 166208, 167692, 177184, 191648, 293461, 335384, 354368, 383296, 586922, 670768, 1173844, 1341536, 2347688, 2683072, 4695376, 9390752, 18781504]

約数ペア:

[(1, 18781504), (2, 9390752), (4, 4695376), (7, 2683072), (8, 2347688), (14, 1341536), (16, 1173844), (28, 670768), (32, 586922), (49, 383296), (53, 354368), (56, 335384), (64, 293461), (98, 191648), (106, 177184), (112, 167692), (113, 166208), (196, 95824), (212, 88592), (224, 83846), (226, 83104), (371, 50624), (392, 47912), (424, 44296), (448, 41923), (452, 41552), (742, 25312), (784, 23956), (791, 23744), (848, 22148), (904, 20776), (1484, 12656), (1568, 11978), (1582, 11872), (1696, 11074), (1808, 10388), (2597, 7232), (2968, 6328), (3136, 5989), (3164, 5936), (3392, 5537), (3616, 5194)]