4000906

素因数分解:

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

素因数の和:143

約数の個数: 48

約数和(自身を含む): 7905600

約数和(自身を除く): 3904694

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 89, 91, 133, 169, 178, 182, 247, 266, 338, 494, 623, 1157, 1183, 1246, 1691, 1729, 2314, 2366, 3211, 3382, 3458, 6422, 8099, 11837, 15041, 16198, 21983, 22477, 23674, 30082, 43966, 44954, 105287, 153881, 210574, 285779, 307762, 571558, 2000453, 4000906]

約数ペア:

[(1, 4000906), (2, 2000453), (7, 571558), (13, 307762), (14, 285779), (19, 210574), (26, 153881), (38, 105287), (89, 44954), (91, 43966), (133, 30082), (169, 23674), (178, 22477), (182, 21983), (247, 16198), (266, 15041), (338, 11837), (494, 8099), (623, 6422), (1157, 3458), (1183, 3382), (1246, 3211), (1691, 2366), (1729, 2314)]