131911325

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2521}}^1$

素因数の和:2574

約数の個数: 48

約数和(自身を含む): 210153216

約数和(自身を除く): 78241891

約数列:

[1, 5, 7, 13, 23, 25, 35, 65, 91, 115, 161, 175, 299, 325, 455, 575, 805, 1495, 2093, 2275, 2521, 4025, 7475, 10465, 12605, 17647, 32773, 52325, 57983, 63025, 88235, 163865, 229411, 289915, 405881, 441175, 753779, 819325, 1147055, 1449575, 2029405, 3768895, 5276453, 5735275, 10147025, 18844475, 26382265, 131911325]

約数ペア:

[(1, 131911325), (5, 26382265), (7, 18844475), (13, 10147025), (23, 5735275), (25, 5276453), (35, 3768895), (65, 2029405), (91, 1449575), (115, 1147055), (161, 819325), (175, 753779), (299, 441175), (325, 405881), (455, 289915), (575, 229411), (805, 163865), (1495, 88235), (2093, 63025), (2275, 57983), (2521, 52325), (4025, 32773), (7475, 17647), (10465, 12605)]