54781636

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^2$

素因数の和:221

約数の個数: 72

約数和(自身を含む): 125612480

約数和(自身を除く): 70830844

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 38, 52, 76, 89, 91, 133, 178, 182, 247, 266, 356, 364, 494, 532, 623, 988, 1157, 1246, 1691, 1729, 2314, 2492, 3382, 3458, 4628, 6764, 6916, 7921, 8099, 11837, 15842, 16198, 21983, 23674, 31684, 32396, 43966, 47348, 55447, 87932, 102973, 110894, 150499, 153881, 205946, 221788, 300998, 307762, 411892, 601996, 615524, 720811, 1053493, 1441622, 1956487, 2106986, 2883244, 3912974, 4213972, 7825948, 13695409, 27390818, 54781636]

約数ペア:

[(1, 54781636), (2, 27390818), (4, 13695409), (7, 7825948), (13, 4213972), (14, 3912974), (19, 2883244), (26, 2106986), (28, 1956487), (38, 1441622), (52, 1053493), (76, 720811), (89, 615524), (91, 601996), (133, 411892), (178, 307762), (182, 300998), (247, 221788), (266, 205946), (356, 153881), (364, 150499), (494, 110894), (532, 102973), (623, 87932), (988, 55447), (1157, 47348), (1246, 43966), (1691, 32396), (1729, 31684), (2314, 23674), (2492, 21983), (3382, 16198), (3458, 15842), (4628, 11837), (6764, 8099), (6916, 7921)]