80997975

素因数分解:

$3^5\times 5^2\times {\mathrm{67}}^1\times {\mathrm{199}}^1$

素因数の和:291

約数の個数: 72

約数和(自身を含む): 153462400

約数和(自身を除く): 72464425

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 67, 75, 81, 135, 199, 201, 225, 243, 335, 405, 597, 603, 675, 995, 1005, 1215, 1675, 1791, 1809, 2025, 2985, 3015, 4975, 5025, 5373, 5427, 6075, 8955, 9045, 13333, 14925, 15075, 16119, 16281, 26865, 27135, 39999, 44775, 45225, 48357, 66665, 80595, 81405, 119997, 134325, 135675, 199995, 241785, 333325, 359991, 402975, 407025, 599985, 999975, 1079973, 1208925, 1799955, 2999925, 3239919, 5399865, 8999775, 16199595, 26999325, 80997975]

約数ペア:

[(1, 80997975), (3, 26999325), (5, 16199595), (9, 8999775), (15, 5399865), (25, 3239919), (27, 2999925), (45, 1799955), (67, 1208925), (75, 1079973), (81, 999975), (135, 599985), (199, 407025), (201, 402975), (225, 359991), (243, 333325), (335, 241785), (405, 199995), (597, 135675), (603, 134325), (675, 119997), (995, 81405), (1005, 80595), (1215, 66665), (1675, 48357), (1791, 45225), (1809, 44775), (2025, 39999), (2985, 27135), (3015, 26865), (4975, 16281), (5025, 16119), (5373, 15075), (5427, 14925), (6075, 13333), (8955, 9045)]