31689856

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{317}}^1$

素因数の和:413

約数の個数: 64

約数和(自身を含む): 70061760

約数和(自身を除く): 38371904

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 71, 88, 128, 142, 176, 284, 317, 352, 568, 634, 704, 781, 1136, 1268, 1408, 1562, 2272, 2536, 3124, 3487, 4544, 5072, 6248, 6974, 9088, 10144, 12496, 13948, 20288, 22507, 24992, 27896, 40576, 45014, 49984, 55792, 90028, 99968, 111584, 180056, 223168, 247577, 360112, 446336, 495154, 720224, 990308, 1440448, 1980616, 2880896, 3961232, 7922464, 15844928, 31689856]

約数ペア:

[(1, 31689856), (2, 15844928), (4, 7922464), (8, 3961232), (11, 2880896), (16, 1980616), (22, 1440448), (32, 990308), (44, 720224), (64, 495154), (71, 446336), (88, 360112), (128, 247577), (142, 223168), (176, 180056), (284, 111584), (317, 99968), (352, 90028), (568, 55792), (634, 49984), (704, 45014), (781, 40576), (1136, 27896), (1268, 24992), (1408, 22507), (1562, 20288), (2272, 13948), (2536, 12496), (3124, 10144), (3487, 9088), (4544, 6974), (5072, 6248)]