20401472

素因数分解:

$2^6\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1$

素因数の和:176

約数の個数: 112

約数和(自身を含む): 51889152

約数和(自身を除く): 31487680

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 31, 32, 52, 56, 62, 64, 91, 104, 112, 113, 124, 182, 208, 217, 224, 226, 248, 364, 403, 416, 434, 448, 452, 496, 728, 791, 806, 832, 868, 904, 992, 1456, 1469, 1582, 1612, 1736, 1808, 1984, 2821, 2912, 2938, 3164, 3224, 3472, 3503, 3616, 5642, 5824, 5876, 6328, 6448, 6944, 7006, 7232, 10283, 11284, 11752, 12656, 12896, 13888, 14012, 20566, 22568, 23504, 24521, 25312, 25792, 28024, 41132, 45136, 45539, 47008, 49042, 50624, 56048, 82264, 90272, 91078, 94016, 98084, 112096, 164528, 180544, 182156, 196168, 224192, 318773, 329056, 364312, 392336, 637546, 658112, 728624, 784672, 1275092, 1457248, 1569344, 2550184, 2914496, 5100368, 10200736, 20401472]

約数ペア:

[(1, 20401472), (2, 10200736), (4, 5100368), (7, 2914496), (8, 2550184), (13, 1569344), (14, 1457248), (16, 1275092), (26, 784672), (28, 728624), (31, 658112), (32, 637546), (52, 392336), (56, 364312), (62, 329056), (64, 318773), (91, 224192), (104, 196168), (112, 182156), (113, 180544), (124, 164528), (182, 112096), (208, 98084), (217, 94016), (224, 91078), (226, 90272), (248, 82264), (364, 56048), (403, 50624), (416, 49042), (434, 47008), (448, 45539), (452, 45136), (496, 41132), (728, 28024), (791, 25792), (806, 25312), (832, 24521), (868, 23504), (904, 22568), (992, 20566), (1456, 14012), (1469, 13888), (1582, 12896), (1612, 12656), (1736, 11752), (1808, 11284), (1984, 10283), (2821, 7232), (2912, 7006), (2938, 6944), (3164, 6448), (3224, 6328), (3472, 5876), (3503, 5824), (3616, 5642)]