990246656

素因数分解:

$2^8\times 7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:318

約数の個数: 144

約数和(自身を含む): 2357042688

約数和(自身を除く): 1366796032

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 56, 64, 71, 86, 112, 128, 142, 172, 181, 224, 256, 284, 301, 344, 362, 448, 497, 568, 602, 688, 724, 896, 994, 1136, 1204, 1267, 1376, 1448, 1792, 1988, 2272, 2408, 2534, 2752, 2896, 3053, 3976, 4544, 4816, 5068, 5504, 5792, 6106, 7783, 7952, 9088, 9632, 10136, 11008, 11584, 12212, 12851, 15566, 15904, 18176, 19264, 20272, 21371, 23168, 24424, 25702, 31132, 31808, 38528, 40544, 42742, 46336, 48848, 51404, 54481, 62264, 63616, 77056, 81088, 85484, 89957, 97696, 102808, 108962, 124528, 127232, 162176, 170968, 179914, 195392, 205616, 217924, 249056, 324352, 341936, 359828, 390784, 411232, 435848, 498112, 552593, 683872, 719656, 781568, 822464, 871696, 996224, 1105186, 1367744, 1439312, 1644928, 1743392, 1992448, 2210372, 2735488, 2878624, 3289856, 3486784, 3868151, 4420744, 5470976, 5757248, 6973568, 7736302, 8841488, 11514496, 13947136, 15472604, 17682976, 23028992, 30945208, 35365952, 61890416, 70731904, 123780832, 141463808, 247561664, 495123328, 990246656]

約数ペア:

[(1, 990246656), (2, 495123328), (4, 247561664), (7, 141463808), (8, 123780832), (14, 70731904), (16, 61890416), (28, 35365952), (32, 30945208), (43, 23028992), (56, 17682976), (64, 15472604), (71, 13947136), (86, 11514496), (112, 8841488), (128, 7736302), (142, 6973568), (172, 5757248), (181, 5470976), (224, 4420744), (256, 3868151), (284, 3486784), (301, 3289856), (344, 2878624), (362, 2735488), (448, 2210372), (497, 1992448), (568, 1743392), (602, 1644928), (688, 1439312), (724, 1367744), (896, 1105186), (994, 996224), (1136, 871696), (1204, 822464), (1267, 781568), (1376, 719656), (1448, 683872), (1792, 552593), (1988, 498112), (2272, 435848), (2408, 411232), (2534, 390784), (2752, 359828), (2896, 341936), (3053, 324352), (3976, 249056), (4544, 217924), (4816, 205616), (5068, 195392), (5504, 179914), (5792, 170968), (6106, 162176), (7783, 127232), (7952, 124528), (9088, 108962), (9632, 102808), (10136, 97696), (11008, 89957), (11584, 85484), (12212, 81088), (12851, 77056), (15566, 63616), (15904, 62264), (18176, 54481), (19264, 51404), (20272, 48848), (21371, 46336), (23168, 42742), (24424, 40544), (25702, 38528), (31132, 31808)]