71255639

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:160

約数の個数: 48

約数和(自身を含む): 95569920

約数和(自身を除く): 24314281

約数列:

[1, 7, 13, 29, 31, 67, 91, 169, 203, 217, 377, 403, 469, 871, 899, 1183, 1943, 2077, 2639, 2821, 4901, 5239, 6097, 6293, 11323, 11687, 13601, 14539, 25259, 27001, 34307, 36673, 60233, 79261, 81809, 151931, 176813, 189007, 328367, 351013, 421631, 783029, 1063517, 2298569, 2457091, 5481203, 10179377, 71255639]

約数ペア:

[(1, 71255639), (7, 10179377), (13, 5481203), (29, 2457091), (31, 2298569), (67, 1063517), (91, 783029), (169, 421631), (203, 351013), (217, 328367), (377, 189007), (403, 176813), (469, 151931), (871, 81809), (899, 79261), (1183, 60233), (1943, 36673), (2077, 34307), (2639, 27001), (2821, 25259), (4901, 14539), (5239, 13601), (6097, 11687), (6293, 11323)]